Prioritization | Study Notes

1. Prioritization as a Core Emergency Nursing Skill

Prioritization is the process of determining the order in which patients receive care based on the urgency of their condition.^[1] In emergency nursing, it is a fundamental skill that directly impacts patient outcomes. Clinically, it ensures life-threatening conditions are addressed first, while on the CEN exam, it is a high‑yield concept tested through scenario‑based questions.^[2]

2. Triage Systems and Survey Terminology

Triage – The systematic sorting of patients to determine priority for treatment.^[3]
ESI (Emergency Severity Index) – A five‑level triage system that categorizes patients by acuity and resource needs (Level 1 = immediate life threat; Level 5 = non‑urgent).^[3]
Primary Survey – A rapid ABCDE assessment (Airway, Breathing, Circulation, Disability, Exposure) to identify immediate life threats.^[1]
Secondary Survey – A focused head‑to‑toe assessment performed after the patient is stabilized.^[4]
Stable vs. Unstable – Stable means vital signs are within normal limits and no impending organ failure; unstable indicates actual or potential decompensation.^[2]

3. ABCDE and Unstable First Prioritization

3.1 The ABCDE Approach

Always address airway obstruction, breathing insufficiency, and circulatory failure before any other concerns.^[1]

A – Airway: open? patent? need for suction or intubation?
B – Breathing: respiratory rate, SpO₂, breath sounds, use of accessory muscles.
C – Circulation: pulse, skin color, capillary refill, blood pressure, signs of shock.
D – Disability: mental status (AVPU or GCS), pupils, stroke signs.
E – Exposure: full body inspection while maintaining warmth.

3.2 The “Unstable First” Rule

Patients with abnormal vital signs, altered mental status, or severe pain always take priority over those who are awake and talking with normal vitals.^[2]

3.3 Time‑Sensitive Conditions

STEMI – Door‑to‑balloon time < 90 minutes.^[5]
Stroke – CT within 25 minutes, tPA within 3‑4.5 hours.^[5]
Sepsis – Antibiotics within 1 hour of recognition.^[5]

4. Life-Threatening Clinical Indicators in Triage

Airway compromise: stridor, gurgling, inability to speak
Respiratory failure: RR < 8 or > 30, SpO₂ < 90%
Shock signs: hypotension (SBP < 90), tachycardia, cool mottled skin
Altered mental status: GCS < 13 or new confusion
Severe pain (e.g., chest pain with diaphoresis, abdominal rigidity)

5. ESI and Modified Early Warning Score

5.1 Emergency Severity Index (ESI)

Level	Description	Example
1	Immediate life threat	Cardiac arrest, severe respiratory distress
2	High risk / unstable	Stroke, chest pain with ECG changes
3	Multiple resources needed	Appendicitis, complex laceration
4	One resource needed	Simple laceration, UTI
5	No resources needed	Minor complaint, prescription refill

5.2 Modified Early Warning Score (MEWS)

A physiological scoring system that predicts clinical deterioration. Parameters: heart rate, respiratory rate, temperature, systolic BP, level of consciousness, urine output.^[4] A score ≥ 5 often triggers a rapid response.

6. Nursing Interventions for Acute Life Threats

For airway compromise – Open airway (jaw‑thrust), suction, place OPA/NPA, prepare for intubation.^[1]
For breathing failure – Administer high‑flow O₂, assist ventilation with BVM, prepare for BiPAP or intubation.
For shock – Establish large‑bore IV, start fluids, control bleeding, prepare blood products, monitor hemodynamics.
For altered mental status – Check glucose, evaluate stroke scale, prepare CT, neuro checks.^[2]

7. Safety Measures and Error Prevention in Emergency Care

Reassessment – Patients can deteriorate; re‑triage at intervals.^[3]
Avoid fixation – Do not become absorbed in one patient; maintain situational awareness of the entire department.^[4]
Team communication – Use closed‑loop communication during handoffs and code situations.
Do not skip the primary survey – Even if a patient presents with an obvious injury, ensure ABCs are intact first.

8. Prioritization Exam Focus and Strategies

ABCs always come first. – The most common wrong answer is one that delays addressing the airway.
Unstable always beats stable. – Even a stable patient with chest pain must wait if an unstable trauma arrives.
Multiple patient scenarios – Prioritize the patient with the highest risk of death (e.g., cardiac arrest, severe respiratory distress).^[2]
Delegation – Assign LPNs stable patients; RNs handle unstable. Never delegate the initial assessment.^[1]
Memory aid – “Airway, Breathing, Circulation, Disability, Exposure” – repeat it on every patient.

9. References & Sources

Emergency Nurses Association. Emergency Nursing Core Curriculum. 7th ed. Elsevier; 2017. https://doi.org/10.1016/C2014-0-04255-2
Solheim J, Reimer L. CEN Review Manual. 6th ed. Western Schools; 2021. https://www.westernschools.com/
Singer RF, Thode HC. The Emergency Severity Index (ESI): A validated tool for fast triage. In: Roberts JR, Hedges JR, eds. Clinical Procedures in Emergency Medicine. 6th ed. Saunders; 2014. https://doi.org/10.1016/B978-1-4557-4399-7.00001-2
Bledsoe BE, Porter RS, Cherry RA. Paramedic Care: Principles & Practice. 5th ed. Pearson; 2016. (Chapter 1 – Scene Size-Up and Primary Assessment). https://www.pearson.com/
American Heart Association (AHA). 2020 AHA Guidelines for CPR and ECC. Part 3: Adult Basic and Advanced Life Support. Circulation. 2020;142(16_suppl_2). https://doi.org/10.1161/CIR.0000000000000916