Suicide Risk

Foundations of Suicide Risk Assessment in the ED

Suicide risk assessment is one of the most critical—and most tested—psychiatric emergencies in the emergency department (ED). Every year, over 700,000 people die by suicide worldwide, and ED visits for suicidal ideation or behavior have risen sharply.[1] The CEN exam expects you to recognize risk factors, conduct a focused safety assessment, and implement evidence-based interventions to keep the patient safe in the acute setting. Mastery of this topic directly impacts patient mortality and medicolegal outcomes.

Core Terminology for Suicide Risk Evaluation

  • Suicidal ideation (SI): Thoughts about wanting to die or end one’s life. Can be passive (“I wish I wouldn’t wake up”) or active (“I plan to take pills tonight”).
  • Suicide attempt: A self‑injurious behavior with intent to die that does not result in death.
  • Completed suicide: Death caused by self‑inflicted injury with intent to die.
  • Lethality: The medical danger of the method chosen (e.g., firearms are highly lethal; wrist cutting has lower lethality).
  • Suicide risk assessment: A systematic evaluation of risk factors, protective factors, and current intent/plan—not a prediction, but a stratification of risk level.[2]

Structured Frameworks for Risk Stratification

The Three-Tiered Risk Stratification

Most EDs and the CEN blueprint use a simple but powerful framework: high, moderate, or low risk. The clinician weighs six key domains.

  1. Ideation: Active vs. passive, frequency, intensity.
  2. Plan: Is a specific method, means, and time identified?
  3. Prior attempts: Strongest predictor of future suicide.[3]
  4. Access to means: Firearms, medications, other lethal tools.
  5. Psychiatric comorbidity: Depression, bipolar disorder, substance use, borderline personality disorder.
  6. Acute stressors: Loss of relationship, job, housing, or significant legal/financial crisis.

The SAFE‑T Protocol

Many EDs use a structured screening tool like the Suicide Assessment Five‑Step Evaluation and Triage (SAFE‑T).[4] Steps include: (1) identify risk factors, (2) identify protective factors, (3) conduct suicide inquiry (ideation, plan, intent), (4) determine risk level / intervention, and (5) document and follow up.

Recognizing Clinical Indicators of Suicidality

  • Verbal cues: “I can’t go on,” “Everyone would be better off without me,” explicit mentions of suicide.
  • Behavioral cues: Giving away prized possessions, writing a will, sudden calmness after severe depression (may indicate decision completed), hoarding medications.
  • Affective signs: Profound hopelessness, anhedonia, intense anger or agitation, severe anxiety, shame.
  • Physical signs: Signs of self‑harm (cuts, burns, overdose), intoxication, withdrawal, poor hygiene.
  • Contextual red flags: Recent discharge from psychiatric unit, anniversary of loss, recent suicide of a family member or idol.[5]

Standardized Screening Tools and Nursing Inquiry

Standardized Screening Tools

ToolPurposeNotes for CEN
PHQ‑9, item 9Screen for SI in primary care but widely used in ED triagePositive response triggers full assessment
Columbia‑Suicide Severity Rating Scale (C‑SSRS)Gold standard for SI and behavior severityQuick screen (<2 min); CEN exam expects familiarity[6]
SAD PERSONS scale10‑item assessment (Sex, Age, Depression, Prior attempt, EtOH, Rational thinking loss, Social support lacking, Organized plan, No spouse, Sickness)Higher score = higher risk; easy to recall for exam

Emergency Nurse Assessment Questions

  • Direct inquiry: “Have you had any thoughts about hurting yourself or ending your life?”
  • Plan assessment: “Do you have a plan? What is it? Have you taken steps to get the means?”
  • Intent: “How likely are you to act on these thoughts right now?”
  • Protective factors: “What has stopped you so far? Do you have someone you can talk to?”

Exam tip: Many students worry that asking about suicide “plants the idea” – decades of evidence show no iatrogenic effect; asking is safe and necessary.[7]

Immediate Safety Interventions and Disposition Planning

Immediate Nursing Interventions

  • Remove ligature risks: Belts, shoelaces, tubing, plastic bags, glass.
  • Continuous observation: 1:1 direct visual monitoring until psychiatric evaluation.
  • Environmental safety: Patient room free from sharp objects, call bell cord wrapped, no unlocked windows.
  • Medical stabilization: If overdose, administer activated charcoal (if within 1 hour) or antidote; monitor cardiac, hepatic function.
  • Pharmacologic calming: Antianxiety or antipsychotic as ordered (e.g., lorazepam, haloperidol) for acute agitation.
  • Therapeutic communication: “I’m here to help you stay safe. Let’s talk about how you’re feeling.”

Disposition Planning

  • High risk: Psychiatric admission, whether voluntary or involuntary.
  • Moderate risk: May be discharged with crisis plan, follow‑up within 24–48 hours, and means restriction counseling (e.g., family locks firearms).
  • Low risk: Refer to outpatient therapy, safety plan provided.
  • Safety plan essential elements: Warning signs, internal coping strategies, social contacts, emergency contact (988 Suicide & Crisis Lifeline), making the environment safe.[8]

Mitigating Risks and Managing High-Risk Scenarios

  • Lethal means restriction: Most critical prevention – if a patient has access to firearms, family must remove them or store in a safe separate from ammunition. Firearms account for >50% of suicide deaths in the US.[9]
  • No‑suicide contracts: Avoid relying on “no‑harm contracts” – they have no evidence base. Use a formal Safety Plan instead.[10]
  • Post‑discharge high‑risk window: First week after ED discharge is highest risk for suicide. Provide crisis line number and clear follow‑up appointment.
  • Complication of involuntary hold: May escalate anger or agitation; de‑escalation techniques and medication as needed.
  • Documentation: If a patient elopes before full assessment, document all actions taken and notification of security and next of kin; this protects against liability.

Memory Aids and Test-Taking Strategies for the CEN

  • Memory aid SAD PERSONS: Quick risk screen you may need to recall for multiple‑choice items. Score <6 → low risk; ≥6 → high risk.
  • Remember the “V” triad: Risk increases with verbalization of intent, verbalizing a plan, and violence history.
  • Most lethal means ≠ most common: Suffocation/hanging is most common method in women; firearms in men.
  • Know crisis resources: 988 (Suicide & Crisis Lifeline) is national. Know that having both ED crisis number and outpatient number increases compliance.
  • When in doubt, assume high risk. The CEN test expects a safety‑first mindset: 1:1 observation, remove means, alert provider.
  • Common wrong answer on exams: “Ask family to promise to watch them” is not reliable. Professional continuous observation is required.
  • Key difference: Suicide gesture (non‑lethal method, low intent, often for communication) vs. suicide attempt (intent to die). Both need full assessment.
  • Do not discharge based solely on patient reassurance – rely on structured tools and collateral history.

References

  1. World Health Organization. Suicide worldwide in 2019: Global Health Estimates. Geneva: World Health Organization; 2021. https://www.who.int/publications/i/item/9789240026643
  2. Berman AL, Silverman MM. Suicide Risk Assessment and Formulation in Children and Adolescents: A Workshop Guide. American Association of Suicidology; 2021. https://suicidology.org/suicide-risk-assessment/
  3. American Psychiatric Association. Practice Guideline for the Assessment and Treatment of Patients With Suicidal Behaviors. Washington, DC; 2003 (reaffirmed 2010). https://doi.org/10.1176/appi.books.9780890423363.56008
  4. Suicide Prevention Resource Center. SAFE‑T: Suicide Assessment Five‑Step Evaluation and Triage. Accessed January 2025. https://www.sprc.org/resources-programs/safe-t
  5. Crosby AE, Han B, Ortega LAG, Parks SE, Gfroerer J. “Suicidal thoughts and behaviors among adults aged ≥18 years – United States, 2008–2009.” MMWR Surveill Summ. 2011;60(SS13):1–22. https://www.cdc.gov/mmwr/preview/mmwrhtml/ss6013a1.htm
  6. Posner K, Brown GK, Stanley B, et al. “The Columbia‑Suicide Severity Rating Scale: initial validity and internal consistency findings from three multisite studies.” Am J Psychiatry. 2011;168(12):1266–1277. https://doi.org/10.1176/appi.ajp.2011.10111704
  7. Dazzi T, Gribble R, Wessely S, Fear NT. “Does asking about suicide and related behaviours induce suicidal ideation? A systematic review and meta‑analysis.” BMJ Open. 2014;4:e005256. https://doi.org/10.1136/bmjopen-2014-005256
  8. Stanley B, Brown GK. “Safety planning intervention: a brief intervention to mitigate suicide risk.” Cogn Behav Pract. 2012;19(2):256–264. https://doi.org/10.1016/j.cbpra.2011.01.001
  9. Centers for Disease Control and Prevention. “Firearm suicides in the United States.” MMWR. 2022;71(19):656–658. https://www.cdc.gov/violenceprevention/suicide/firearm-suicide.html
  10. McMyler C, Pryjmachuk S. “Do ‘no‑suicide’ contracts work?” J Psychiatr Ment Health Nurs. 2008;15(6):512–517. https://doi.org/10.1111/j.1365-2850.2008.01286.x

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