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Which of the following should be administered for an overdose of a beta-blocker?
Detailed Rationale
Glucagon is a first-line antidote for beta-blocker overdose. It works by bypassing the blocked beta-adrenergic receptors and directly stimulating cardiac cyclic AMP, increasing heart rate and contractility. Calcium may be used for calcium channel blocker overdose, not primarily for beta-blockers.
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A patient who smells strongly of alcohol and has slurred speech is physically assisted to the emergency department by a police officer. Which of the following statements is an appropriate objective observation to appear in the patient's medical record?
Detailed Rationale
Charting must be objective, factual, and based on observable behaviors. "Staggers when walking" is an objective description of ataxia. Terms like "alcoholic," "intoxicated," or "appears intoxicated" are subjective conclusions or interpretations.
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Which of the following signs and symptoms would be considered MOST serious on a day when the air temperature is 104°F (40°C)?
Detailed Rationale
This describes classic heat stroke, a life-threatening emergency. Seizures indicate central nervous system dysfunction. Hot, dry skin (though not always present) suggests thermoregulatory failure. Reduced urinary output signals impending organ failure from rhabdomyolysis and dehydration. This requires immediate cooling and advanced care.
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A patient with ripping substernal chest pain and dyspnea is receiving oxygen via nonrebreathing mask. Pulses in the left arm are absent. The HIGHEST priority for a nurse is to prepare the patient for
Detailed Rationale
This describes a classic presentation of an aortic dissection (ripping pain, pulse deficit). The highest priority is to prepare for emergency surgical or endovascular repair to prevent rupture and death. Imaging (like TEE or CT) is needed for diagnosis, but preparation for definitive treatment is the critical nursing action.
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A patient presents with eye irritation and difficulty opening their eyes after grinding metal. It would be MOST appropriate for the nurse to administer
Detailed Rationale
Proparacaine is a topical ophthalmic anesthetic. It is used to provide pain relief to facilitate eye examination (e.g., for foreign body removal, checking for corneal abrasion with fluorescein) after a potential metal-on-metal injury that could cause corneal foreign bodies or abrasions.
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A sudden onset of gagging and stridor is consistent with which of the following conditions?
Detailed Rationale
A sudden onset in a previously well person is the hallmark of foreign body aspiration. It often causes immediate gagging, choking, stridor (if the object is in the upper airway), and respiratory distress. Epiglottitis has a more gradual onset with fever. Laryngospasm can be sudden but is often associated with procedures or irritants.
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A patient with a history of schizophrenia arrives in an agitated state and smelling of alcohol. After initial assessment, a nurse should FIRST obtain
Detailed Rationale
In any patient with altered mental status (agitation), the first priority is to rule out immediately life-threatening and reversible causes. Hypoglycemia is a common, rapidly correctable cause of agitation and can mimic intoxication or psychiatric exacerbation. It should be checked immediately at the bedside.
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A patient who has pericarditis will typically describe the chest pain as
Detailed Rationale
Pericarditis pain is typically sharp, pleuritic (worsened by inspiration, cough, or lying flat), and positional (relieved by sitting up and leaning forward). This distinguishes it from ischemic cardiac pain, which is often pressure-like and not affected by respiration or position.
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A patient presents with hypotension and uncontrolled bleeding from the thigh. It would be a PRIORITY for the nurse to
Detailed Rationale
For life-threatening extremity hemorrhage that is uncontrolled by direct pressure, the application of a tourniquet proximal to the wound is the priority intervention per trauma guidelines (e.g., Stop the Bleed campaign). This immediately controls bleeding to prevent exsanguination while other resuscitative measures are initiated.
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A patient presents 6 hours after intentionally ingesting an entire bottle of acetaminophen (Tylenol). Which of the following is the PRIORITY intervention?
Detailed Rationale
N-acetylcysteine (NAC) is the specific antidote for acetaminophen overdose. It works best if started within 8-10 hours of ingestion to prevent or limit hepatotoxicity. While activated charcoal may be considered if the patient presents early and is alert, starting the antidote is the definitive treatment priority.
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A patient is complaining of chest pain and shortness of breath after a lung biopsy. Decreased breath sounds are noted on the left side. It would be a PRIORITY for the nurse to
Detailed Rationale
This is a classic presentation of an iatrogenic pneumothorax, a known complication of lung biopsy. Decreased breath sounds and pain/dyspnea post-procedure are key indicators. Tube thoracostomy (chest tube insertion) is the definitive treatment to re-expand the lung.
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A patient presents with hoarse voice, intraoral burns, dizziness, and hypoxia after a propane tank explosion. What is the PRIORITY nursing action?
Detailed Rationale
The combination of hoarseness, intraoral burns, and hypoxia following an explosion or fire is highly suggestive of inhalation injury and potential upper airway edema. This is a precursor to rapid, complete airway obstruction. Preparing for immediate, definitive airway control via intubation is the highest priority.
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A patient presents with palpitations and has the ECG rhythm shown below. [Narrow-complex regular tachycardia shown] The nurse should anticipate administering
Detailed Rationale
The ECG rhythm is regular, narrow-complex, and rapid, consistent with supraventricular tachycardia (SVT), which originates above the ventricles and commonly involves an AV nodal re-entry mechanism. Adenosine is the first-line treatment for stable SVT because it transiently blocks AV node conduction, interrupting the re-entry pathway and often restoring normal sinus rhythm. Other medications such as beta blockers or calcium channel blockers are used for rate control, while amiodarone is reserved for ventricular dysrhythmias. Therefore, adenosine is the most appropriate medication to anticipate administering.
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The nurse should change the initial assigned triage acuity score when the
Detailed Rationale
Triage is a dynamic process. If a patient's condition changes (e.g., worsens) while still in the waiting area or triage zone, the triage nurse must reassess and upgrade the acuity level accordingly to ensure timely care.
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A patient is being evaluated in the emergency department after sustaining minor injuries in a disaster where several people were killed. Discharge teaching has been effective when the patient states:
Detailed Rationale
Benzodiazepines are not for long-term daily use for disaster-related anxiety due to risk of dependence. They should be used short-term. The correct understanding is that�physical dependence can develop and requires tapering�to avoid withdrawal.
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The nurse is caring for patient who has a positive cardiac FAST examination. The nurse should anticipate that the patient will also have
Detailed Rationale
A positive cardiac FAST exam indicates fluid (blood) in the pericardial sac (pericardial effusion), which can lead to cardiac tamponade. A classic sign of tamponade is dyspnea due to impaired cardiac filling and output. Other signs include hypotension, tachycardia (not bradycardia), muffled heart sounds, and pulsus paradoxus.
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When sodium bicarbonate is given to a patient during cardiac arrest, the intent is to correct
Detailed Rationale
During prolonged cardiac arrest, anaerobic metabolism leads to lactic acidosis, a form of metabolic acidosis. Sodium bicarbonate is sometimes used to correct severe, refractory acidosis (pH <7.1-7.2) in an attempt to improve the effectiveness of catecholamines and defibrillation. Its use is controversial and not routine.
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A patient who has taken an overdose of tricyclic antidepressants is unresponsive to deep pain. A nurse should anticipate IV administration of
Detailed Rationale
Tricyclic antidepressant (TCA) overdose causes life-threatening sodium channel blockade, leading to wide QRS complex arrhythmias, hypotension, and seizures. Sodium bicarbonate is the first-line treatment. It alkalinizes the plasma, which helps to unbind TCAs from cardiac sodium channels, reducing cardiotoxicity and narrowing the QRS complex. Physostigmine is rarely used due to risks of bradycardia and seizures. Calcium is for calcium channel blocker overdose. Thiamin is for Wernicke's encephalopathy.
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A patient presents 2 hours post-envenomation by a pit viper with edema to the extremity. The nurse should anticipate
Detailed Rationale
Pit viper (e.g., rattlesnake) venom contains hemotoxic and cytotoxic components. Local edema is common. Systemic effects can include coagulopathy (due to fibrinolysis and thrombocytopenia), which is a major concern. Anticipating coagulopathy is crucial for monitoring (e.g., PT/PTT, platelets) and potential antivenom administration. Agitation and hypertension are less specific. Clonus is not a typical finding.
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A patient presents with decreased level of consciousness, constricted pupils, and depressed respirations. The patient's symptoms are MOST suggestive of
Detailed Rationale
The classic triad of opioid/narcotic overdose is: CNS depression (decreased LOC), respiratory depression, and pinpoint pupils (miosis). Phenobarbital and alcohol cause CNS/respiratory depression but typically cause normal or dilated pupils. Lithium toxicity presents with neurological symptoms (tremor, ataxia, confusion), GI distress, and normal pupils.
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An increase in the hemoglobin level and hematocrit of a severely burned patient may indicate
Detailed Rationale
In burn patients, massive fluid shifts occur. An increase in hemoglobin and hematocrit indicates hemoconcentration, which is a sign of intravascular volume depletion (dehydration) due to fluid loss into the interstitial space (third spacing). Hemodilution would show decreased values. Infection and electrolyte imbalance do not directly cause hemoconcentration in this way.
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A patient presents with a unilateral pronator drift. This condition is indicative of
Detailed Rationale
Pronator drift is a classic sign of upper motor neuron weakness (e.g., from a stroke or other cerebral lesion). When a patient holds both arms outstretched with palms up and one arm pronates (turns inward) and drifts downward, it indicates contralateral cerebral hemisphere dysfunction, often from ischemia. It is a sensitive early sign of a stroke. It is not specific to cerebellar issues, vertigo, or speech problems.
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Which of the following symptoms is MOST characteristic of a patient exhibiting psychotic behavior?
Detailed Rationale
Psychosis is characterized by a loss of contact with reality. The hallmark positive symptoms include hallucinations, delusions, and disorganized thinking (evidenced by incoherent speech, tangentiality, etc.). Obsessive actions are more characteristic of anxiety disorders. Negative self-concept and failure to cope are broad psychological issues, not specific to psychosis.
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A woman who is 33 weeks pregnant is brought to the emergency department after being in a motor vehicle crash. While being evaluated for cervical spine injury, the patient remains immobilized with a wedge placed under the right side of the long board. The purpose of this position is to
Detailed Rationale
In a pregnant patient beyond 20 weeks, the gravid uterus can compress the inferior vena cava when the patient is supine, reducing venous return and causing supine hypotensive syndrome. Placing a wedge (or manually displacing the uterus) under the right hip tilts the patient, shifting the uterus off the vena cava, which improves venous return and increases cardiac output. This is a critical step in trauma resuscitation of a pregnant patient.
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A 2-year-old patient who experiences difficulty breathing, restlessness, and a barking cough MOST likely has a history that includes
Detailed Rationale
This describes croup (laryngotracheobronchitis), which is typically viral (often parainfluenza). It presents with a barking cough, stridor, and respiratory distress, usually preceded by 1-3 days of low-grade fever and mild upper respiratory infection (URI) symptoms. Epiglottitis (option A) presents with high fever, toxic appearance, and drooling, not a barking cough. Tonsillitis doesn't cause a barky cough. Allergic reactions cause different symptoms (wheezing, urticaria).
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Which of the following needs to be performed on the patient prior to drawing an arterial blood gas?
Detailed Rationale
Before performing an arterial puncture (like for an ABG), the Allen test should be performed to assess collateral circulation (ulnar artery patency) in the hand. This ensures that if the radial artery is injured or thrombosed, the hand will still have blood supply via the ulnar artery. It is a safety measure. The other assessments are not specific prerequisites for an ABG.
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The primary treatment for a patient with a suicidal plan who presents to the emergency department includes
Detailed Rationale
The cornerstone of managing a suicidal patient in the ED is ensuring constant safety through close observation, typically a 1:1 sitter in a safe room (with removed hazards). This intervention is immediate and nursing-driven. Escalating to the physician is necessary but not the primary treatment. A chair in view is insufficient. Checking labs is part of the assessment but does not directly address the acute safety risk.
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Which of the following symptoms would be present in a patient who presents with keratitis?
Detailed Rationale
Keratitis is inflammation of the cornea. The classic symptoms are severe eye pain (often described as a foreign body sensation), photophobia (light sensitivity), and excessive tearing (epiphora). Ptosis and fever are not typical. Watery discharge and burning are more conjunctivitis. A nodule suggests a chalazion or stye.
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A victim of a near-drowning is unconscious. INITIAL treatment of the patient should include
Detailed Rationale
For any unconscious trauma patient, especially with a mechanism like diving or drowning where spinal injury is possible, the initial approach follows the ABCs with cervical spine immobilization. The FIRST actions are to open the airway while maintaining cervical spine alignment (using jaw-thrust) and provide rescue breaths/oxygen as needed. Decompressing the stomach is not a first priority. IV access comes after initial airway and breathing interventions.
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A patient who sustained a traumatic amputation as a result of an industrial accident is a candidate for reimplantation. A nurse should recognize that the amputated part:
Detailed Rationale
For an amputated part, the goal is to preserve tissue without causing further damage. The part should be rinsed gently with sterile saline (not scrubbed) to remove gross contaminants. It should be wrapped in a sterile, moist (saline) gauze, placed in a sealed plastic bag, and then placed on ice (not directly on ice and NEVER in dry ice, which can cause frostbite). The part should be kept cool, but freezing must be avoided. Viability decreases with time, especially without cooling.
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A patient who has a fractured mandible and broken teeth is alert and has partial obstruction of the airway. Appropriate management of the airway should include the use of:
Detailed Rationale
In a patient with facial/mandibular trauma, an oropharyngeal airway is contraindicated due to potential for gagging, vomiting, and further displacement of fractures. A nasopharyngeal airway (nasal trumpet) is the preferred adjunct as it bypasses the oral cavity and is better tolerated in a conscious patient with a gag reflex. Advanced airways like LMA or Combitube may be used if intubation is needed, but the question asks for an appropriate airway *adjunct* in a partially obstructed, alert patient.
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Dobutamine (Dobutrex) is used to treat cardiogenic shock because it
Detailed Rationale
Dobutamine is a primarily beta-1 adrenergic agonist. Its main action is positive inotropy – it increases the force of myocardial contraction, thereby increasing cardiac output, which is the primary deficit in cardiogenic shock. It also has some vasodilatory effects (beta-2), which can reduce afterload. It does not primarily dilate coronaries, reduce O2 consumption (it may increase), or increase SVR (it may decrease it).
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When treating an adult patient who may have partial airway obstruction due to a foreign body, a nurse should
Detailed Rationale
For a patient with a PARTIAL airway obstruction who is able to cough and breathe (good air exchange), the recommended intervention is to encourage coughing and provide supportive measures. Do not interfere with the patient's own efforts to clear the airway. Blind finger sweeps are dangerous. Abdominal thrusts (Heimlich) are for complete obstruction in a conscious patient. Bag-mask ventilation is for apnea or inadequate breathing.
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A patient presents with difficulty breathing, use of accessory muscles, and a history of asthma. Upon auscultation, which of the following indicates that the patient is in severe respiratory distress?
Detailed Rationale
In severe asthma exacerbation or status asthmaticus, air movement can become so severely limited that wheezing diminishes or disappears. This 'silent chest' is an ominous sign indicating imminent respiratory failure, not improvement. Expiratory wheezing and a prolonged expiratory phase are common in moderate asthma. Loud biphasic wheezes indicate significant obstruction but still with some air movement. Absence of wheezing in this clinical context signals critical airway narrowing and requires immediate intervention.
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An infant has been delivered en route to the emergency department. Upon arrival, the infant is crying. The nurse's FIRST action should be to:
Detailed Rationale
For a newborn, the priority interventions are encapsulated in the ABCs of neonatal resuscitation, with a strong emphasis on thermal regulation. A crying infant has a patent airway and is breathing. The single most effective step to prevent heat loss and stimulate continued breathing is to thoroughly dry the infant with a warm blanket. This simple action prevents hypothermia, which is a major stressor for newborns. After drying and ensuring the airway is clear (if needed), warming in an incubator can follow. Suctioning is only necessary if secretions are obstructing the airway, and routine suctioning can cause bradycardia. Glucose check is not the first priority for a stable, crying infant.
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Excessive vomiting may result in
Detailed Rationale
Excessive vomiting leads to the loss of gastric acid (HCl). The loss of H+ ions from the stomach causes a relative excess of bicarbonate (HCO3-) in the blood, resulting in a metabolic alkalosis. Additionally, volume loss can lead to contraction alkalosis. Respiratory alkalosis/acidosis are related to changes in alveolar ventilation (CO2 levels), not directly to vomiting. Metabolic acidosis would occur with a gain of acid (e.g., DKA) or loss of bicarbonate (e.g., diarrhea).
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A patient presents with dysphagia, bilateral submandibular swelling, and elevation and protrusion of the tongue 24 hours after a wisdom tooth extraction. The nurse should suspect
Detailed Rationale
Ludwig's angina is a rapidly spreading, potentially life-threatening cellulitis of the submandibular and sublingual spaces, often originating from a dental infection (e.g., wisdom tooth). The classic signs are bilateral submandibular swelling, elevation and protrusion of the tongue (often described as 'woody' induration), dysphagia, and potential airway compromise. Peritonsillar abscess is typically unilateral. Acute thyroiditis involves the thyroid gland, not the submandibular space. Strep pharyngitis does not cause this degree of swelling or tongue elevation.
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A patient with chronic renal failure missed an appointment for dialysis and is now in acute fluid overload. Which of the following nursing interventions should be done FIRST in the management of this patient?
Detailed Rationale
In acute pulmonary edema from fluid overload, the immediate first action to improve respiratory status is to position the patient upright (high Fowler's). This uses gravity to reduce venous return to the heart (preload) and allows for better lung expansion. This can be done instantly while other interventions (like administering diuretics, which may be less effective in renal failure, or preparing for dialysis) are being organized. Monitoring is ongoing but is not the first therapeutic action.
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An acute episode of Meniere's disease is generally indicated by
Detailed Rationale
Meniere's disease is characterized by a triad of symptoms: episodic vertigo (lasting minutes to hours), unilateral sensorineural hearing loss (often fluctuating), and tinnitus (usually a low-frequency roar). A feeling of aural fullness is also common. The other options describe conditions like anxiety attacks, diabetic emergencies, or gastroenteritis.
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A patient presents unresponsive and cold with a distended abdomen, pale waxy skin, and facial edema. Past medical history includes a thyroidectomy 2 years ago and a recent urinary tract infection. Vital signs are as follows: BP 90/50 mm Hg, HR 42 beats/min, RR 12 breaths/min, T 94.7°F (34.8°C). The nurse suspects
Detailed Rationale
Myxedema coma/crisis is a life-threatening extreme of hypothyroidism. The clues are: history of thyroidectomy (lack of thyroid hormone), recent infection (common precipitant), profound hypothermia, bradycardia, hypotension, altered mental status, and characteristic skin findings (cool, pale, waxy, edematous). Thyroid storm is the opposite (hyperthermia, tachycardia, hypertension). Hypoparathyroidism causes hypocalcemia (tetany, seizures). Hashimoto's is the autoimmune cause of hypothyroidism but describes the chronic condition, not the acute crisis.
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A patient has an acute extrapyramidal reaction after taking a 'blue pill.' Therapy has been effective if the
Detailed Rationale
An 'acute dystonic reaction' is a type of extrapyramidal symptom (EPS) often caused by antipsychotics or antiemetics (like metoclopramide). It involves involuntary muscle spasms, commonly of the neck (torticollis), tongue, face, or eyes. The first-line treatment is an anticholinergic/antihistaminic agent like diphenhydramine or benztropine. Therapeutic effectiveness is judged by the resolution of the dystonic spasm. Drooling may also decrease, and sedation is a side effect of the treatment, but relief of the painful, distressing spasm is the primary goal. Stridor is a sign of laryngeal dystonia, a more severe form.
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A patient has chest wall pain and shortness of breath after being involved in a motor vehicle crash. ECG studies reveal an ST segment elevation. These findings are MOST suggestive of
Detailed Rationale
Blunt cardiac injury (myocardial contusion) should be suspected in any patient with significant anterior chest trauma. The classic finding is ST-segment changes or other ECG abnormalities (like arrhythmias) that mimic an acute coronary syndrome. Chest wall pain and dyspnea are common to all the listed injuries. However, ECG changes point directly to cardiac involvement. Tension pneumothorax would show tracheal deviation, unilateral hyperresonance, and shock. Pulmonary contusion causes hypoxemia and fluffy infiltrates on CXR. Cardiac tamponade presents with Beck's triad and electrical alternans on ECG.
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A 24-year-old woman has left upper quadrant abdominal pain radiating into the left shoulder. The patient is hypotensive and tachycardia despite infusion of 2 L of warmed crystalloids. The nurse should NEXT prepare to administer
Detailed Rationale
This presentation (LUQ pain, Kehr's sign - shoulder pain, hypotension/tachycardia refractory to fluids) is classic for a ruptured spleen. The patient is in hemorrhagic shock. After initial crystalloid resuscitation fails to stabilize the patient, the next step is blood product transfusion. Packed red blood cells (PRBCs) are given to restore oxygen-carrying capacity and volume. Platelets and FFP are used for coagulopathy, which may be part of massive transfusion protocol, but PRBCs are the immediate priority. Additional crystalloid boluses alone would dilute clotting factors and not address the ongoing blood loss.
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A patient with a history of penetrating abdominal trauma arrives 2 days after injury with fever, hypotension despite adequate fluid replacement, and generalized edema. Which of the following should be suspected?
Detailed Rationale
The timeline (2 days post-penetrating injury) and symptoms (fever, hypotension refractory to fluids, edema) point to septic shock. Peritonitis and intra-abdominal abscess are common complications. The generalized edema can be due to capillary leak syndrome, a hallmark of systemic inflammatory response in sepsis. Hypovolemic shock would typically present immediately. Cardiogenic shock would involve signs of pump failure (e.g., pulmonary edema). Neurogenic shock presents with bradycardia and warm skin, not fever.
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Which of the following should be administered for an overdose of a beta-blocker?
Detailed Rationale
Glucagon is a first-line antidote for beta-blocker overdose. It works by bypassing the blocked beta-adrenergic receptors and directly stimulating cardiac cyclic AMP, increasing heart rate and contractility. Calcium may be used for calcium channel blocker overdose, not primarily for beta-blockers.
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A patient who smells strongly of alcohol and has slurred speech is physically assisted to the emergency department by a police officer. Which of the following statements is an appropriate objective observation to appear in the patient's medical record?
Detailed Rationale
Charting must be objective, factual, and based on observable behaviors. "Staggers when walking" is an objective description of ataxia. Terms like "alcoholic," "intoxicated," or "appears intoxicated" are subjective conclusions or interpretations.
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Which of the following signs and symptoms would be considered MOST serious on a day when the air temperature is 104°F (40°C)?
Detailed Rationale
This describes classic heat stroke, a life-threatening emergency. Seizures indicate central nervous system dysfunction. Hot, dry skin (though not always present) suggests thermoregulatory failure. Reduced urinary output signals impending organ failure from rhabdomyolysis and dehydration. This requires immediate cooling and advanced care.
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A patient with ripping substernal chest pain and dyspnea is receiving oxygen via nonrebreathing mask. Pulses in the left arm are absent. The HIGHEST priority for a nurse is to prepare the patient for
Detailed Rationale
This describes a classic presentation of an aortic dissection (ripping pain, pulse deficit). The highest priority is to prepare for emergency surgical or endovascular repair to prevent rupture and death. Imaging (like TEE or CT) is needed for diagnosis, but preparation for definitive treatment is the critical nursing action.
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A patient presents with eye irritation and difficulty opening their eyes after grinding metal. It would be MOST appropriate for the nurse to administer
Detailed Rationale
Proparacaine is a topical ophthalmic anesthetic. It is used to provide pain relief to facilitate eye examination (e.g., for foreign body removal, checking for corneal abrasion with fluorescein) after a potential metal-on-metal injury that could cause corneal foreign bodies or abrasions.
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A sudden onset of gagging and stridor is consistent with which of the following conditions?
Detailed Rationale
A sudden onset in a previously well person is the hallmark of foreign body aspiration. It often causes immediate gagging, choking, stridor (if the object is in the upper airway), and respiratory distress. Epiglottitis has a more gradual onset with fever. Laryngospasm can be sudden but is often associated with procedures or irritants.
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A patient with a history of schizophrenia arrives in an agitated state and smelling of alcohol. After initial assessment, a nurse should FIRST obtain
Detailed Rationale
In any patient with altered mental status (agitation), the first priority is to rule out immediately life-threatening and reversible causes. Hypoglycemia is a common, rapidly correctable cause of agitation and can mimic intoxication or psychiatric exacerbation. It should be checked immediately at the bedside.
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A patient who has pericarditis will typically describe the chest pain as
Detailed Rationale
Pericarditis pain is typically sharp, pleuritic (worsened by inspiration, cough, or lying flat), and positional (relieved by sitting up and leaning forward). This distinguishes it from ischemic cardiac pain, which is often pressure-like and not affected by respiration or position.
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A patient presents with hypotension and uncontrolled bleeding from the thigh. It would be a PRIORITY for the nurse to
Detailed Rationale
For life-threatening extremity hemorrhage that is uncontrolled by direct pressure, the application of a tourniquet proximal to the wound is the priority intervention per trauma guidelines (e.g., Stop the Bleed campaign). This immediately controls bleeding to prevent exsanguination while other resuscitative measures are initiated.
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A patient presents 6 hours after intentionally ingesting an entire bottle of acetaminophen (Tylenol). Which of the following is the PRIORITY intervention?
Detailed Rationale
N-acetylcysteine (NAC) is the specific antidote for acetaminophen overdose. It works best if started within 8-10 hours of ingestion to prevent or limit hepatotoxicity. While activated charcoal may be considered if the patient presents early and is alert, starting the antidote is the definitive treatment priority.
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A patient is complaining of chest pain and shortness of breath after a lung biopsy. Decreased breath sounds are noted on the left side. It would be a PRIORITY for the nurse to
Detailed Rationale
This is a classic presentation of an iatrogenic pneumothorax, a known complication of lung biopsy. Decreased breath sounds and pain/dyspnea post-procedure are key indicators. Tube thoracostomy (chest tube insertion) is the definitive treatment to re-expand the lung.
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A patient presents with hoarse voice, intraoral burns, dizziness, and hypoxia after a propane tank explosion. What is the PRIORITY nursing action?
Detailed Rationale
The combination of hoarseness, intraoral burns, and hypoxia following an explosion or fire is highly suggestive of inhalation injury and potential upper airway edema. This is a precursor to rapid, complete airway obstruction. Preparing for immediate, definitive airway control via intubation is the highest priority.
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A patient presents with palpitations and has the ECG rhythm shown below. [Narrow-complex regular tachycardia shown] The nurse should anticipate administering
Detailed Rationale
The ECG rhythm is regular, narrow-complex, and rapid, consistent with supraventricular tachycardia (SVT), which originates above the ventricles and commonly involves an AV nodal re-entry mechanism. Adenosine is the first-line treatment for stable SVT because it transiently blocks AV node conduction, interrupting the re-entry pathway and often restoring normal sinus rhythm. Other medications such as beta blockers or calcium channel blockers are used for rate control, while amiodarone is reserved for ventricular dysrhythmias. Therefore, adenosine is the most appropriate medication to anticipate administering.
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The nurse should change the initial assigned triage acuity score when the
Detailed Rationale
Triage is a dynamic process. If a patient's condition changes (e.g., worsens) while still in the waiting area or triage zone, the triage nurse must reassess and upgrade the acuity level accordingly to ensure timely care.
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A patient is being evaluated in the emergency department after sustaining minor injuries in a disaster where several people were killed. Discharge teaching has been effective when the patient states:
Detailed Rationale
Benzodiazepines are not for long-term daily use for disaster-related anxiety due to risk of dependence. They should be used short-term. The correct understanding is that�physical dependence can develop and requires tapering�to avoid withdrawal.
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The nurse is caring for patient who has a positive cardiac FAST examination. The nurse should anticipate that the patient will also have
Detailed Rationale
A positive cardiac FAST exam indicates fluid (blood) in the pericardial sac (pericardial effusion), which can lead to cardiac tamponade. A classic sign of tamponade is dyspnea due to impaired cardiac filling and output. Other signs include hypotension, tachycardia (not bradycardia), muffled heart sounds, and pulsus paradoxus.
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When sodium bicarbonate is given to a patient during cardiac arrest, the intent is to correct
Detailed Rationale
During prolonged cardiac arrest, anaerobic metabolism leads to lactic acidosis, a form of metabolic acidosis. Sodium bicarbonate is sometimes used to correct severe, refractory acidosis (pH <7.1-7.2) in an attempt to improve the effectiveness of catecholamines and defibrillation. Its use is controversial and not routine.
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A patient who has taken an overdose of tricyclic antidepressants is unresponsive to deep pain. A nurse should anticipate IV administration of
Detailed Rationale
Tricyclic antidepressant (TCA) overdose causes life-threatening sodium channel blockade, leading to wide QRS complex arrhythmias, hypotension, and seizures. Sodium bicarbonate is the first-line treatment. It alkalinizes the plasma, which helps to unbind TCAs from cardiac sodium channels, reducing cardiotoxicity and narrowing the QRS complex. Physostigmine is rarely used due to risks of bradycardia and seizures. Calcium is for calcium channel blocker overdose. Thiamin is for Wernicke's encephalopathy.
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A patient presents 2 hours post-envenomation by a pit viper with edema to the extremity. The nurse should anticipate
Detailed Rationale
Pit viper (e.g., rattlesnake) venom contains hemotoxic and cytotoxic components. Local edema is common. Systemic effects can include coagulopathy (due to fibrinolysis and thrombocytopenia), which is a major concern. Anticipating coagulopathy is crucial for monitoring (e.g., PT/PTT, platelets) and potential antivenom administration. Agitation and hypertension are less specific. Clonus is not a typical finding.
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A patient presents with decreased level of consciousness, constricted pupils, and depressed respirations. The patient's symptoms are MOST suggestive of
Detailed Rationale
The classic triad of opioid/narcotic overdose is: CNS depression (decreased LOC), respiratory depression, and pinpoint pupils (miosis). Phenobarbital and alcohol cause CNS/respiratory depression but typically cause normal or dilated pupils. Lithium toxicity presents with neurological symptoms (tremor, ataxia, confusion), GI distress, and normal pupils.
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An increase in the hemoglobin level and hematocrit of a severely burned patient may indicate
Detailed Rationale
In burn patients, massive fluid shifts occur. An increase in hemoglobin and hematocrit indicates hemoconcentration, which is a sign of intravascular volume depletion (dehydration) due to fluid loss into the interstitial space (third spacing). Hemodilution would show decreased values. Infection and electrolyte imbalance do not directly cause hemoconcentration in this way.
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A patient presents with a unilateral pronator drift. This condition is indicative of
Detailed Rationale
Pronator drift is a classic sign of upper motor neuron weakness (e.g., from a stroke or other cerebral lesion). When a patient holds both arms outstretched with palms up and one arm pronates (turns inward) and drifts downward, it indicates contralateral cerebral hemisphere dysfunction, often from ischemia. It is a sensitive early sign of a stroke. It is not specific to cerebellar issues, vertigo, or speech problems.
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Which of the following symptoms is MOST characteristic of a patient exhibiting psychotic behavior?
Detailed Rationale
Psychosis is characterized by a loss of contact with reality. The hallmark positive symptoms include hallucinations, delusions, and disorganized thinking (evidenced by incoherent speech, tangentiality, etc.). Obsessive actions are more characteristic of anxiety disorders. Negative self-concept and failure to cope are broad psychological issues, not specific to psychosis.
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A woman who is 33 weeks pregnant is brought to the emergency department after being in a motor vehicle crash. While being evaluated for cervical spine injury, the patient remains immobilized with a wedge placed under the right side of the long board. The purpose of this position is to
Detailed Rationale
In a pregnant patient beyond 20 weeks, the gravid uterus can compress the inferior vena cava when the patient is supine, reducing venous return and causing supine hypotensive syndrome. Placing a wedge (or manually displacing the uterus) under the right hip tilts the patient, shifting the uterus off the vena cava, which improves venous return and increases cardiac output. This is a critical step in trauma resuscitation of a pregnant patient.
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A 2-year-old patient who experiences difficulty breathing, restlessness, and a barking cough MOST likely has a history that includes
Detailed Rationale
This describes croup (laryngotracheobronchitis), which is typically viral (often parainfluenza). It presents with a barking cough, stridor, and respiratory distress, usually preceded by 1-3 days of low-grade fever and mild upper respiratory infection (URI) symptoms. Epiglottitis (option A) presents with high fever, toxic appearance, and drooling, not a barking cough. Tonsillitis doesn't cause a barky cough. Allergic reactions cause different symptoms (wheezing, urticaria).
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Which of the following needs to be performed on the patient prior to drawing an arterial blood gas?
Detailed Rationale
Before performing an arterial puncture (like for an ABG), the Allen test should be performed to assess collateral circulation (ulnar artery patency) in the hand. This ensures that if the radial artery is injured or thrombosed, the hand will still have blood supply via the ulnar artery. It is a safety measure. The other assessments are not specific prerequisites for an ABG.
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The primary treatment for a patient with a suicidal plan who presents to the emergency department includes
Detailed Rationale
The cornerstone of managing a suicidal patient in the ED is ensuring constant safety through close observation, typically a 1:1 sitter in a safe room (with removed hazards). This intervention is immediate and nursing-driven. Escalating to the physician is necessary but not the primary treatment. A chair in view is insufficient. Checking labs is part of the assessment but does not directly address the acute safety risk.
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Which of the following symptoms would be present in a patient who presents with keratitis?
Detailed Rationale
Keratitis is inflammation of the cornea. The classic symptoms are severe eye pain (often described as a foreign body sensation), photophobia (light sensitivity), and excessive tearing (epiphora). Ptosis and fever are not typical. Watery discharge and burning are more conjunctivitis. A nodule suggests a chalazion or stye.
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A victim of a near-drowning is unconscious. INITIAL treatment of the patient should include
Detailed Rationale
For any unconscious trauma patient, especially with a mechanism like diving or drowning where spinal injury is possible, the initial approach follows the ABCs with cervical spine immobilization. The FIRST actions are to open the airway while maintaining cervical spine alignment (using jaw-thrust) and provide rescue breaths/oxygen as needed. Decompressing the stomach is not a first priority. IV access comes after initial airway and breathing interventions.
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A patient who sustained a traumatic amputation as a result of an industrial accident is a candidate for reimplantation. A nurse should recognize that the amputated part:
Detailed Rationale
For an amputated part, the goal is to preserve tissue without causing further damage. The part should be rinsed gently with sterile saline (not scrubbed) to remove gross contaminants. It should be wrapped in a sterile, moist (saline) gauze, placed in a sealed plastic bag, and then placed on ice (not directly on ice and NEVER in dry ice, which can cause frostbite). The part should be kept cool, but freezing must be avoided. Viability decreases with time, especially without cooling.
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A patient who has a fractured mandible and broken teeth is alert and has partial obstruction of the airway. Appropriate management of the airway should include the use of:
Detailed Rationale
In a patient with facial/mandibular trauma, an oropharyngeal airway is contraindicated due to potential for gagging, vomiting, and further displacement of fractures. A nasopharyngeal airway (nasal trumpet) is the preferred adjunct as it bypasses the oral cavity and is better tolerated in a conscious patient with a gag reflex. Advanced airways like LMA or Combitube may be used if intubation is needed, but the question asks for an appropriate airway *adjunct* in a partially obstructed, alert patient.
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Dobutamine (Dobutrex) is used to treat cardiogenic shock because it
Detailed Rationale
Dobutamine is a primarily beta-1 adrenergic agonist. Its main action is positive inotropy – it increases the force of myocardial contraction, thereby increasing cardiac output, which is the primary deficit in cardiogenic shock. It also has some vasodilatory effects (beta-2), which can reduce afterload. It does not primarily dilate coronaries, reduce O2 consumption (it may increase), or increase SVR (it may decrease it).
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When treating an adult patient who may have partial airway obstruction due to a foreign body, a nurse should
Detailed Rationale
For a patient with a PARTIAL airway obstruction who is able to cough and breathe (good air exchange), the recommended intervention is to encourage coughing and provide supportive measures. Do not interfere with the patient's own efforts to clear the airway. Blind finger sweeps are dangerous. Abdominal thrusts (Heimlich) are for complete obstruction in a conscious patient. Bag-mask ventilation is for apnea or inadequate breathing.
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A patient presents with difficulty breathing, use of accessory muscles, and a history of asthma. Upon auscultation, which of the following indicates that the patient is in severe respiratory distress?
Detailed Rationale
In severe asthma exacerbation or status asthmaticus, air movement can become so severely limited that wheezing diminishes or disappears. This 'silent chest' is an ominous sign indicating imminent respiratory failure, not improvement. Expiratory wheezing and a prolonged expiratory phase are common in moderate asthma. Loud biphasic wheezes indicate significant obstruction but still with some air movement. Absence of wheezing in this clinical context signals critical airway narrowing and requires immediate intervention.
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An infant has been delivered en route to the emergency department. Upon arrival, the infant is crying. The nurse's FIRST action should be to:
Detailed Rationale
For a newborn, the priority interventions are encapsulated in the ABCs of neonatal resuscitation, with a strong emphasis on thermal regulation. A crying infant has a patent airway and is breathing. The single most effective step to prevent heat loss and stimulate continued breathing is to thoroughly dry the infant with a warm blanket. This simple action prevents hypothermia, which is a major stressor for newborns. After drying and ensuring the airway is clear (if needed), warming in an incubator can follow. Suctioning is only necessary if secretions are obstructing the airway, and routine suctioning can cause bradycardia. Glucose check is not the first priority for a stable, crying infant.
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Excessive vomiting may result in
Detailed Rationale
Excessive vomiting leads to the loss of gastric acid (HCl). The loss of H+ ions from the stomach causes a relative excess of bicarbonate (HCO3-) in the blood, resulting in a metabolic alkalosis. Additionally, volume loss can lead to contraction alkalosis. Respiratory alkalosis/acidosis are related to changes in alveolar ventilation (CO2 levels), not directly to vomiting. Metabolic acidosis would occur with a gain of acid (e.g., DKA) or loss of bicarbonate (e.g., diarrhea).
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A patient presents with dysphagia, bilateral submandibular swelling, and elevation and protrusion of the tongue 24 hours after a wisdom tooth extraction. The nurse should suspect
Detailed Rationale
Ludwig's angina is a rapidly spreading, potentially life-threatening cellulitis of the submandibular and sublingual spaces, often originating from a dental infection (e.g., wisdom tooth). The classic signs are bilateral submandibular swelling, elevation and protrusion of the tongue (often described as 'woody' induration), dysphagia, and potential airway compromise. Peritonsillar abscess is typically unilateral. Acute thyroiditis involves the thyroid gland, not the submandibular space. Strep pharyngitis does not cause this degree of swelling or tongue elevation.
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A patient with chronic renal failure missed an appointment for dialysis and is now in acute fluid overload. Which of the following nursing interventions should be done FIRST in the management of this patient?
Detailed Rationale
In acute pulmonary edema from fluid overload, the immediate first action to improve respiratory status is to position the patient upright (high Fowler's). This uses gravity to reduce venous return to the heart (preload) and allows for better lung expansion. This can be done instantly while other interventions (like administering diuretics, which may be less effective in renal failure, or preparing for dialysis) are being organized. Monitoring is ongoing but is not the first therapeutic action.
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An acute episode of Meniere's disease is generally indicated by
Detailed Rationale
Meniere's disease is characterized by a triad of symptoms: episodic vertigo (lasting minutes to hours), unilateral sensorineural hearing loss (often fluctuating), and tinnitus (usually a low-frequency roar). A feeling of aural fullness is also common. The other options describe conditions like anxiety attacks, diabetic emergencies, or gastroenteritis.
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A patient presents unresponsive and cold with a distended abdomen, pale waxy skin, and facial edema. Past medical history includes a thyroidectomy 2 years ago and a recent urinary tract infection. Vital signs are as follows: BP 90/50 mm Hg, HR 42 beats/min, RR 12 breaths/min, T 94.7°F (34.8°C). The nurse suspects
Detailed Rationale
Myxedema coma/crisis is a life-threatening extreme of hypothyroidism. The clues are: history of thyroidectomy (lack of thyroid hormone), recent infection (common precipitant), profound hypothermia, bradycardia, hypotension, altered mental status, and characteristic skin findings (cool, pale, waxy, edematous). Thyroid storm is the opposite (hyperthermia, tachycardia, hypertension). Hypoparathyroidism causes hypocalcemia (tetany, seizures). Hashimoto's is the autoimmune cause of hypothyroidism but describes the chronic condition, not the acute crisis.
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A patient has an acute extrapyramidal reaction after taking a 'blue pill.' Therapy has been effective if the
Detailed Rationale
An 'acute dystonic reaction' is a type of extrapyramidal symptom (EPS) often caused by antipsychotics or antiemetics (like metoclopramide). It involves involuntary muscle spasms, commonly of the neck (torticollis), tongue, face, or eyes. The first-line treatment is an anticholinergic/antihistaminic agent like diphenhydramine or benztropine. Therapeutic effectiveness is judged by the resolution of the dystonic spasm. Drooling may also decrease, and sedation is a side effect of the treatment, but relief of the painful, distressing spasm is the primary goal. Stridor is a sign of laryngeal dystonia, a more severe form.
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A patient has chest wall pain and shortness of breath after being involved in a motor vehicle crash. ECG studies reveal an ST segment elevation. These findings are MOST suggestive of
Detailed Rationale
Blunt cardiac injury (myocardial contusion) should be suspected in any patient with significant anterior chest trauma. The classic finding is ST-segment changes or other ECG abnormalities (like arrhythmias) that mimic an acute coronary syndrome. Chest wall pain and dyspnea are common to all the listed injuries. However, ECG changes point directly to cardiac involvement. Tension pneumothorax would show tracheal deviation, unilateral hyperresonance, and shock. Pulmonary contusion causes hypoxemia and fluffy infiltrates on CXR. Cardiac tamponade presents with Beck's triad and electrical alternans on ECG.
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A 24-year-old woman has left upper quadrant abdominal pain radiating into the left shoulder. The patient is hypotensive and tachycardia despite infusion of 2 L of warmed crystalloids. The nurse should NEXT prepare to administer
Detailed Rationale
This presentation (LUQ pain, Kehr's sign - shoulder pain, hypotension/tachycardia refractory to fluids) is classic for a ruptured spleen. The patient is in hemorrhagic shock. After initial crystalloid resuscitation fails to stabilize the patient, the next step is blood product transfusion. Packed red blood cells (PRBCs) are given to restore oxygen-carrying capacity and volume. Platelets and FFP are used for coagulopathy, which may be part of massive transfusion protocol, but PRBCs are the immediate priority. Additional crystalloid boluses alone would dilute clotting factors and not address the ongoing blood loss.
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A patient with a history of penetrating abdominal trauma arrives 2 days after injury with fever, hypotension despite adequate fluid replacement, and generalized edema. Which of the following should be suspected?
Detailed Rationale
The timeline (2 days post-penetrating injury) and symptoms (fever, hypotension refractory to fluids, edema) point to septic shock. Peritonitis and intra-abdominal abscess are common complications. The generalized edema can be due to capillary leak syndrome, a hallmark of systemic inflammatory response in sepsis. Hypovolemic shock would typically present immediately. Cardiogenic shock would involve signs of pump failure (e.g., pulmonary edema). Neurogenic shock presents with bradycardia and warm skin, not fever.
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