ABMDI Exam – Demonstrating Scientific
Knowledge NEWEST EXAM QUESTIONS
AND CORRECT DETAILED ANSWERS
2026 (VERIFIED ANSWERS)
1. Which of the following terms refers to the stiffening of muscles after
death?
A. Livor mortis
B. Rigor mortis
C. Algor mortis
D. Decomposition
Rationale: Rigor mortis is the postmortem stiffening of muscles due to
chemical changes in the muscles after death. It usually begins within 2–4
hours and peaks around 12 hours after death.
2. What is the primary purpose of forensic toxicology in a death
investigation?
A. To identify the cause of injury
,B. To determine the presence and levels of drugs or poisons
C. To examine wound patterns
D. To calculate time of death
Rationale: Forensic toxicology focuses on identifying and quantifying
substances such as drugs, alcohol, and poisons that may have contributed
to a person's death.
3. Which organ is most often used for toxicological analysis in a
postmortem examination?
A. Brain
B. Lungs
C. Liver
D. Spleen
Rationale: The liver is a common organ used in postmortem toxicology
because it processes and metabolizes many toxins, making it a key site for
detecting substances.
4. Livor mortis becomes fixed in a body approximately how long after
death?
A. 1 hour
B. 2–3 hours
C. 8–12 hours
D. 24 hours
Rationale: Livor mortis, the settling of blood in the dependent parts of the
body, typically becomes fixed (non-blanching) within 8–12 hours
postmortem.
,5. Which of the following best defines putrefaction?
A. Cooling of the body
B. Muscle stiffening
C. Decomposition caused by bacterial activity
D. Blood pooling
Rationale: Putrefaction is a stage of decomposition caused by bacterial
activity leading to the breakdown of body tissues and the release of gases.
6. A pink or cherry-red coloration of the body at autopsy is most
characteristic of which type of poisoning?
A. Arsenic
B. Carbon monoxide
C. Cyanide
D. Methanol
Rationale: Carbon monoxide poisoning often causes a cherry-red
discoloration of the skin and internal organs due to the formation of
carboxyhemoglobin.
7. Which of the following is the most accurate method for determining
time of death in the early postmortem interval?
A. Skin color
B. Body temperature (algor mortis)
C. Livor mortis
D. Putrefaction
Rationale: Algor mortis, or body cooling, can be used to estimate time of
death in the early stages by measuring core body temperature and
applying standard formulas.
, 8. Which insect is most commonly used to estimate time since death in
forensic entomology?
A. Ant
B. Blowfly (Calliphoridae)
C. Beetle
D. Moth
Rationale: The blowfly is often the first insect to colonize a dead body and
is therefore widely used in estimating the postmortem interval using its
life cycle.
9. What is the term for the process where fatty tissues are converted
into a waxy substance in a moist environment?
A. Skeletonization
B. Adipocere formation
C. Mummification
D. Desiccation
Rationale: Adipocere, or “grave wax,” forms when body fat undergoes
saponification in a moist, anaerobic environment, slowing decomposition.
10. Which of the following best describes the forensic significance of
petechiae in a decedent’s eyes?
A. Natural death
B. Brain trauma
C. Possible asphyxia
D. Alcohol poisoning
Rationale: Petechiae are small hemorrhages that may be seen in the
conjunctiva and can suggest asphyxia due to increased venous pressure or
restricted blood flow.
Knowledge NEWEST EXAM QUESTIONS
AND CORRECT DETAILED ANSWERS
2026 (VERIFIED ANSWERS)
1. Which of the following terms refers to the stiffening of muscles after
death?
A. Livor mortis
B. Rigor mortis
C. Algor mortis
D. Decomposition
Rationale: Rigor mortis is the postmortem stiffening of muscles due to
chemical changes in the muscles after death. It usually begins within 2–4
hours and peaks around 12 hours after death.
2. What is the primary purpose of forensic toxicology in a death
investigation?
A. To identify the cause of injury
,B. To determine the presence and levels of drugs or poisons
C. To examine wound patterns
D. To calculate time of death
Rationale: Forensic toxicology focuses on identifying and quantifying
substances such as drugs, alcohol, and poisons that may have contributed
to a person's death.
3. Which organ is most often used for toxicological analysis in a
postmortem examination?
A. Brain
B. Lungs
C. Liver
D. Spleen
Rationale: The liver is a common organ used in postmortem toxicology
because it processes and metabolizes many toxins, making it a key site for
detecting substances.
4. Livor mortis becomes fixed in a body approximately how long after
death?
A. 1 hour
B. 2–3 hours
C. 8–12 hours
D. 24 hours
Rationale: Livor mortis, the settling of blood in the dependent parts of the
body, typically becomes fixed (non-blanching) within 8–12 hours
postmortem.
,5. Which of the following best defines putrefaction?
A. Cooling of the body
B. Muscle stiffening
C. Decomposition caused by bacterial activity
D. Blood pooling
Rationale: Putrefaction is a stage of decomposition caused by bacterial
activity leading to the breakdown of body tissues and the release of gases.
6. A pink or cherry-red coloration of the body at autopsy is most
characteristic of which type of poisoning?
A. Arsenic
B. Carbon monoxide
C. Cyanide
D. Methanol
Rationale: Carbon monoxide poisoning often causes a cherry-red
discoloration of the skin and internal organs due to the formation of
carboxyhemoglobin.
7. Which of the following is the most accurate method for determining
time of death in the early postmortem interval?
A. Skin color
B. Body temperature (algor mortis)
C. Livor mortis
D. Putrefaction
Rationale: Algor mortis, or body cooling, can be used to estimate time of
death in the early stages by measuring core body temperature and
applying standard formulas.
, 8. Which insect is most commonly used to estimate time since death in
forensic entomology?
A. Ant
B. Blowfly (Calliphoridae)
C. Beetle
D. Moth
Rationale: The blowfly is often the first insect to colonize a dead body and
is therefore widely used in estimating the postmortem interval using its
life cycle.
9. What is the term for the process where fatty tissues are converted
into a waxy substance in a moist environment?
A. Skeletonization
B. Adipocere formation
C. Mummification
D. Desiccation
Rationale: Adipocere, or “grave wax,” forms when body fat undergoes
saponification in a moist, anaerobic environment, slowing decomposition.
10. Which of the following best describes the forensic significance of
petechiae in a decedent’s eyes?
A. Natural death
B. Brain trauma
C. Possible asphyxia
D. Alcohol poisoning
Rationale: Petechiae are small hemorrhages that may be seen in the
conjunctiva and can suggest asphyxia due to increased venous pressure or
restricted blood flow.
