Forensic Pathology and Autopsy Practice
Forensic Pathology and Autopsy Practice tests cause and manner of death, autopsy technique, postmortem change, injury interpretation and medicolegal documentation. The exam expects disciplined separation of observation from inference.
Core rules
- Cause of death is the disease or injury that initiated the fatal process; mechanism is the physiologic derangement; manner is natural, accident, suicide, homicide or undetermined.
- Autopsy types include complete, limited, external and medicolegal. Consent and legal authority differ by jurisdiction.
- Postmortem changes include livor, rigor, algor and decomposition; timing is approximate and influenced by environment.
- Injury interpretation considers wound dimensions, edges, tracks, vital reactions and defense injuries.
- Toxicology requires proper collection, labeling and chain of custody.
Worked example
A man is found with a single stab wound to the left chest. Autopsy shows a pericardial tamponade and a track through the right ventricle. The cause of death is exsanguination and cardiac tamponade due to a penetrating cardiac stab wound; the manner is homicide. Reasoning: the wound track explains the fatal mechanism, and the medicolegal classification depends on circumstances, not autopsy alone. Scene and toxicology data are integrated.
Traps
Do not confuse cause with mechanism: myocardial infarction is a cause; arrhythmia is a mechanism. Livor does not prove position if it is fixed. Rigor timing is unreliable in extremes of temperature. A postmortem wound can lack vital reaction. Chain-of-custody breaks can invalidate toxicology.