Death Investigation and Medicolegal Processes
This domain tests death investigation roles, jurisdiction, scene preservation, postmortem changes, and reporting obligations. Questions often distinguish cause from manner of death and ask what a nurse may or may not do before the medical examiner arrives.
Core concepts
- Coroner systems may involve elected officials who are not physicians; medical examiner systems use physicians, often forensic pathologists. Jurisdiction varies.
- Cause of death is the disease or injury that produced death; manner is natural, accident, suicide, homicide, or undetermined.
- Postmortem changes include algor mortis, livor mortis, rigor mortis, and decomposition; they help estimate timing but are affected by environment.
- Nurses report suspicious, unexpected, or violent deaths; preserve the scene and belongings; avoid altering tubes or lines without direction.
- Document the last known well time, witnessed events, and chain of custody for decedent property.
Worked example
A nursing home resident dies unexpectedly with unexplained bruising, and a family member reports an unwitnessed fall. The nurse should report to the medical examiner or coroner, preserve clothing and belongings, document the last known well time and observed injuries, and avoid attributing cause or manner. The nurse does not decide whether the death was natural or accidental.
Traps that cost marks
- Confusing cause and manner of death.
- Cleaning the body or removing lines before investigator arrival.
- Assuming a death is natural because the patient was elderly.
- Releasing belongings to family before documentation and authorization.