Forensic Medicine Assessment

20 learning units • 10 questions per unit • 200 explained questions

Module 06 — Postmortem Changes & Time Since Death

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Question 01 • Single best answer

Which variable can substantially affect postmortem cooling?

A. The spelling of the decedent's name B. Clothing and ambient conditions C. The evidence-label color D. The court hearing date

Question 02 • Single best answer

What produces ordinary postmortem lividity?

A. Active muscle contraction B. New red-cell production C. Progressive bone growth D. Gravitational settling of blood after circulation stops

Question 03 • Single best answer

Why may lividity distribution be relevant to body position?

A. It uniquely proves the assailant's identity B. It may reflect dependent regions and possible repositioning C. It always fixes at exactly one hour D. It directly measures drowning-water salinity

Question 04 • Single best answer

What biochemical change contributes to rigor mortis?

A. Increased oxygen delivery to every muscle B. New neural impulses after brain death C. Rapid regeneration of muscle fibers D. Depletion of ATP in muscle

Question 05 • Single best answer

Which process is primarily microbial?

A. Putrefaction B. Autolysis alone C. Rigor alone D. Passive lividity alone

Question 06 • Single best answer

Which environment is generally more compatible with mummification?

A. Any environment after exactly one day B. A requirement for continuous immersion C. Conditions that guarantee no water loss D. Conditions favoring desiccation

Question 07 • Single best answer

What is a limitation of using vitreous potassium to estimate time since death?

A. It gives an exact hour in every case B. It directly identifies the cause of injury C. Models and results depend on conditions and method D. It is unaffected by temperature

Question 08 • Single best answer

What interval can insect development most directly inform?

A. The exact last meal in every case B. The time of birth of the decedent C. Time associated with colonization under relevant conditions D. The length of every previous illness

Question 09 • Single best answer

Why can postmortem drug concentrations differ from concentrations during life?

A. Every drug disappears at death B. Sampling location never matters C. Redistribution and postmortem changes can alter sampled levels D. All drugs become chemically identical

Question 10 • Single best answer

What is the best conclusion when different postmortem indicators provide broad overlapping ranges?

A. Report a reasoned interval and its limitations B. Select an exact minute to appear decisive C. Ignore environmental information D. Treat the most dramatic sign as infallible

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