Lethality Assessment
A structured clinical evaluation of the probability that a patient's suicidal or homicidal ideation will result in death, incorporating means, intent, plan, and prior attempts.
Full Definition
Lethality assessment goes beyond the mere presence of suicidal or homicidal ideation to quantify the realistic danger of a fatal outcome. Clinicians evaluate the specificity of the patient's plan, access to means, lethality of chosen method, protective factors, and history of prior attempts. In editorial contexts, this term is frequently confused with 'risk assessment' (a broader concept) or 'SI/HI assessment' (which identifies the presence of ideation but does not necessarily gauge fatality potential). Accurate use is essential in forensic psychiatric reports, discharge summaries, and malpractice-related documentation.
Usage
Usage note: Distinguish from 'risk assessment,' which is a broader term encompassing multiple domains. 'Lethality assessment' specifically addresses the probability of a fatal outcome.
In Context
- "The lethality assessment revealed a specific plan involving a firearm with confirmed access, elevating the patient to high risk." — Psychiatric emergency evaluation note
- "Editors should not substitute 'lethality assessment' with 'suicide screening,' as the former implies a higher level of clinical depth." — Editorial style guide