KMU Past Paper Practice

Question:

A 38-year-old man dies suddenly after complaining of brief palpitations. At autopsy there is no fatal trauma, major structural cardiac lesion or significant toxicological finding. Which mechanism could explain why a definite anatomical cause remains undemonstrated?

Options:

Correct Answer: Fatal electrical rhythm disturbance

Explanation: A fatal arrhythmia may produce death without a characteristic structural lesion, making it a possible explanation when a complete autopsy remains anatomically negative.

Question:

A body is recovered several days after death. Decomposition has markedly altered the tissues, and no definite cause can be established despite examination. What is the most important reason for caution before labeling the case as truly unexplained?

Options:

Correct Answer: Tissue alteration may obscure the original lesion

Explanation: Advanced decomposition can destroy or distort disease and injury findings, creating an apparently negative examination even when an original lesion existed.

Question:

A man is found dead after an unwitnessed fall. Only minor scalp discoloration is visible externally. The circumstances nevertheless strongly suggest head trauma. Which autopsy approach is most appropriate?

Options:

Correct Answer: Perform targeted examination of deeper structures

Explanation: Minimal external findings do not exclude significant concealed trauma. Suspicious circumstances justify careful examination of deeper soft tissues, bone and internal structures.

Question:

During examination of a body, the pathologist recognizes that a superficial defect was produced while the body was being transported to the mortuary. What is the most important action when preparing the postmortem opinion?

Options:

Correct Answer: Recognize and document its postmortem origin

Explanation: Correct recognition and documentation prevent an artifact from being misinterpreted as an antemortem injury and distorting the final medico-legal opinion.

Question:

At autopsy, an examiner finds a suspicious tissue defect near an internal organ. The operative and resuscitation records show that an invasive procedure was performed shortly before death. Which evidence is most useful for interpreting the defect?

Options:

Correct Answer: Correlation with the procedural history

Explanation: Knowledge of procedures performed before death helps distinguish iatrogenic or resuscitation-related changes from primary traumatic lesions.

Question:

A fetus is delivered after an unattended pregnancy, and a medico-legal question arises regarding its capacity for independent survival. Which assessment is most relevant to this question?

Options:

Correct Answer: Overall maturity and development

Explanation: Viability concerns developmental capacity for independent survival and is assessed from the fetus as a whole rather than from a single postmortem change.

Question:

At autopsy of a newborn, the lungs float in water. Investigation reveals that positive-pressure ventilation was attempted immediately after delivery. What is the main forensic implication of this information?

Options:

Correct Answer: The flotation finding may have an artificial explanation

Explanation: Artificial ventilation can introduce air into the lungs. Therefore, flotation cannot be interpreted as independent proof of spontaneous respiration or live birth.

Question:

A newborn is alleged to have been alive after complete delivery. The lungs show some aeration, but the forensic examiner wants stronger evidence before forming an opinion. Which principle should guide interpretation?

Options:

Correct Answer: Multiple findings should support separate existence

Explanation: Live birth and separate existence are medico-legal conclusions based on the total evidence; no isolated finding should carry the entire interpretation.

Question:

A dead newborn has evidence of postnatal respiration and a deliberate obstructive act is demonstrated during investigation. How should the causative behavior be classified medico-legally?

Options:

Correct Answer: Act of commission

Explanation: A deliberate positive action producing harm is an act of commission, in contrast to death resulting from failure to provide necessary care.

Question:

An infant dies unexpectedly and no obvious injury is seen. Before considering sudden infant death syndrome, which approach is essential?

Options:

Correct Answer: Perform appropriate investigation to exclude identifiable causes

Explanation: SIDS is an unexplained infant death after an appropriate investigation; identifiable natural disease, trauma and other causes must first be excluded.

Question:

A mortuary team is informed that a deceased patient had an infectious disease transmissible through blood. Which combination best represents the appropriate approach during examination?

Options:

Correct Answer: Barrier protection with careful sharps handling

Explanation: Blood-borne occupational exposure is reduced by appropriate personal protection and safe handling of scalpels, needles and other sharp instruments.

Question:

During examination of an infected body, a procedure is expected to generate splashes of blood and body fluid. Which preventive principle is most appropriate?

Options:

Correct Answer: Use protection against mucosal and skin exposure

Explanation: Blood and body-fluid splashes can expose skin and mucous membranes; appropriate barriers reduce this occupational transmission route.

Question:

A forensic pathologist must examine a body suspected of harboring an infection capable of transmission through respiratory aerosols. Which aspect of the procedure deserves particular control?

Options:

Correct Answer: Procedures capable of aerosol generation

Explanation: Aerosol-generating manipulation increases respiratory exposure risk and should therefore be minimized or carefully controlled during such autopsies.

Question:

Following examination of an infected body, a technician discovers that contaminated instruments were placed directly beside clean equipment. Which principle has been compromised?

Options:

Correct Answer: Control of contamination and decontamination

Explanation: Contaminated equipment should be handled separately and appropriately decontaminated to prevent transfer of infectious material to clean instruments and surfaces.

Question:

Several human body fragments are recovered from a remote location. Some pieces cannot initially be assigned to a specific anatomical region. Which step best preserves the reliability of the later reconstruction?

Options:

Correct Answer: Keep each fragment individually identified and documented

Explanation: Separate documentation preserves the origin and identity of each fragment, preventing mixing and allowing reliable anatomical reconstruction later.

Question:

Two sets of fragmentary remains are recovered together, and investigators are uncertain whether they represent one or more individuals. Which forensic question should be addressed before interpreting the injury pattern?

Options:

Correct Answer: Whether the fragments represent the same individual

Explanation: Establishing the number of individuals represented is fundamental before anatomical reconstruction or interpretation of injuries across separate fragments.

Question:

A mutilated body contains several separated parts. The pathologist identifies tissue that may be useful for histology, toxicology and biological identification. What principle should determine specimen selection?

Options:

Correct Answer: Choose samples according to the forensic question

Explanation: Fragmentary-remain sampling is purpose-driven: different available tissues may be required for identification, histology, toxicology or injury assessment.

Question:

A mutilated body has a potentially fatal cranial injury, while limb separation appears to have occurred after death. Which conclusion best reflects appropriate forensic reasoning?

Options:

Correct Answer: Fatal injury and later mutilation should be interpreted separately

Explanation: The lesion responsible for death and subsequent postmortem mutilation may represent separate events and should not automatically be assigned the same significance.

Question:

During preparation of a cadaver for long-term preservation, a chemical solution is introduced through the vascular system. What is the main purpose of this step?

Options:

Correct Answer: Distribute preservative throughout the tissues

Explanation: Vascular introduction of embalming fluid distributes preservative chemicals through tissues, reducing microbial activity and delaying decomposition.

Question:

A body required for anatomical teaching is treated with a formaldehyde-containing solution. Which effect best explains the usefulness of this chemical in the preservation process?

Options:

Correct Answer: It delays tissue breakdown and decomposition

Explanation: Formaldehyde-containing embalming solutions preserve tissues and reduce decomposition, allowing cadavers to remain suitable for storage and teaching.