Autopsy Procedures — MCQs

10 questions

Type of inquest conducted in dowry death is

During autopsy of a 65-year-old man who collapsed while eating dinner at home, a foreign body (food bolus) is found obstructing the larynx with no other injuries. The manner of death is:

Incisions for medicolegal autopsy include all except?

All are useful in knowing the time since death Except

Postmortem examination of the stomach is done after:

The most specific test to detect blood stains is:

IPC 201 deals with which of the following?

Chicken fat clot is seen in -

Which of the following statements are true about antemortem wounds?

Q10

Which of the following is true regarding adipocere formation?

Autopsy Procedures Indian Medical PG Practice Questions and MCQs

Question 1: Type of inquest conducted in dowry death is

A. Coroner's inquest
B. Police inquest (Correct Answer)
C. Magistrate inquest
D. Medical examiner's inquest

Explanation: ***Police inquest*** - In dowry death cases, a **police inquest** is mandatory under Section 174 of the **Criminal Procedure Code (CrPC)** when the cause of death is suspicious or unnatural and involves a woman within seven years of marriage. - The police investigate the circumstances surrounding the death to determine if it was due to **dowry-related harassment** or other foul play. *Coroner's inquest* - A **coroner's inquest** is a judicial inquiry to determine the cause of death, typically conducted in jurisdictions that have a coroner system (e.g., some parts of the UK, USA). - This system is generally **not prevalent in India**, where dowry deaths are governed by specific sections of the CrPC and Indian Penal Code (IPC). *Magistrate inquest* - A **magistrate inquest** (under Section 176 CrPC) is conducted by an Executive Magistrate only in specific circumstances, such as custodial deaths, deaths in police firing, or when the police officer is accused of having caused the death. - While it can be ordered in some unnatural deaths, it's not the primary or exclusive type of inquest prescribed for typical dowry deaths unless further statutory conditions are met. *Medical examiner's inquest* - A **medical examiner's inquest** is conducted by a medical examiner, a legally qualified medical doctor specializing in forensic pathology. This system is similar to the coroner system, often used in parts of the USA. - In India, the investigation primarily involves **police procedures** and civil or judicial magistrates, rather than medical examiners.

Question 2: During autopsy of a 65-year-old man who collapsed while eating dinner at home, a foreign body (food bolus) is found obstructing the larynx with no other injuries. The manner of death is:

A. Intentional harm
B. Self-inflicted harm
C. Unintentional injury (Correct Answer)
D. Death from natural causes

Explanation: ***Unintentional injury*** - The presence of a **food bolus obstructing the respiratory tract** in a person who collapsed while eating, with **no evidence of trauma or suspicious circumstances**, is classified as **accidental/unintentional death**. - This is the most common manner of death associated with foreign body airway obstruction, particularly in elderly individuals or those with neurological conditions affecting swallowing. - **Café coronary syndrome** (choking on food mimicking cardiac arrest) is a classic example of accidental asphyxia. *Intentional harm (Homicide)* - Homicidal foreign body aspiration would require evidence of: - **Forced insertion** of the foreign body - **Other traumatic injuries** (bruising, struggle marks) - **Suspicious circumstances** at the scene - The scenario described lacks these features, making homicide unlikely. *Self-inflicted harm (Suicide)* - Suicide by foreign body aspiration is **extremely rare** and would require: - **Evidence of suicidal intent** (suicide note, psychiatric history) - Deliberate insertion beyond the gag reflex - Accidental choking while eating does not constitute suicidal behavior. *Death from natural causes* - **Natural death** results from disease processes, not external physical agents. - A foreign body causing mechanical airway obstruction is an **external cause of death**, not a natural disease process. - Even if the person had a predisposing medical condition, the immediate cause (foreign body obstruction) makes this an unintentional injury, not natural death.

Question 3: Incisions for medicolegal autopsy include all except?

A. 'Y' shaped
B. Modified 'Y' shaped
C. Modified 'I' shaped (Correct Answer)
D. 'T' shaped

Explanation: **Modified 'I' shaped** - The **modified 'I' shaped** incision is not a standard or recognized incision for a medicolegal autopsy. - Standard autopsy incisions are designed to provide comprehensive access while maintaining anatomical integrity as much as possible for future viewing or reconstruction. *'Y' shaped* - The **'Y' shaped incision** is a commonly used incision in medicolegal autopsies, starting at the shoulders and meeting at the xiphoid process, then extending to the pubic symphysis. - This incision allows for optimal exposure of the neck, chest, and abdominal organs. *Modified 'Y' shaped* - The **modified 'Y' shaped incision** is a variation of the standard 'Y' incision, often used to avoid cutting through prominent scars or to provide better access in specific cases. - It maintains the general principle of broad exposure while adapting to individual circumstances. *'T' shaped* - The **'T' shaped incision** is another recognized incision, though less common than the 'Y' shape, primarily used for better exposure of the neck and chest in certain circumstances. - It involves a horizontal incision across the upper chest, intersecting with a vertical midline incision.

Question 4: All are useful in knowing the time since death Except

A. Postmortem staining
B. Cooling of the body
C. Rigor mortis
D. Postmortem bruising (Correct Answer)

Explanation: ***Postmortem bruising*** - **Postmortem bruising** is not a reliable indicator for determining the time since death. It represents an injury that occurred **perimortem** or shortly before death, indicating trauma rather than a specific postmortem interval. - While it can help establish the circumstances of death, it doesn't follow a predictable timeline after death that allows for accurate time estimation. *Postmortem staining* - **Postmortem staining**, also known as **livor mortis** or **lividity**, is the settling of blood in dependent parts of the body due to gravity. - Its presence, distribution, and fixity can provide an estimation of the time of death, appearing within **30 minutes to 2 hours** and becoming fixed after **8-12 hours**. *Cooling of the body* - **Cooling of the body**, or **algor mortis**, refers to the decrease in body temperature after death until it equilibrates with the ambient temperature. - This process is used to estimate time since death, with the rate of cooling influenced by factors like **ambient temperature**, body size, and clothing. *Rigor mortis* - **Rigor mortis** is the stiffening of muscles that occurs after death due to chemical changes within the muscle cells. - It typically begins **2-4 hours** after death, becomes fully established around **8-12 hours**, and resolves after **24-48 hours**, following a predictable sequence of appearance and disappearance.

Question 5: Postmortem examination of the stomach is done after:

A. Double ligation (Correct Answer)
B. Triple ligation
C. Single ligation
D. Cut open

Explanation: ***Double ligation*** - **Double ligation** of the esophagus minimizes spillage of stomach contents during organ removal and dissection, preserving the integrity of the collected sample. - This technique helps prevent contamination of other organs and the examination area, which is crucial for accurate **postmortem analysis**. *Triple ligation* - While technically more secure, **triple ligation** is generally not considered necessary for routine postmortem stomach removal due to the practicality of the procedure. - The added effort and time for a third ligature provide minimal additional benefit beyond **double ligation** in preventing spillage. *Single ligation* - **Single ligation** of the esophagus is insufficient and carries a high risk of stomach content spillage during organ manipulation. - This method is inadequate for ensuring the **integrity of the gastric sample** and preventing contamination of other organs. *Cut open* - Simply **cutting open** the stomach or esophagus prior to removal and proper isolation would lead to immediate and extensive spillage of stomach contents. - This approach would severely compromise the postmortem examination by contaminating other organs and making it difficult to assess the **gastric contents accurately**.

Question 6: The most specific test to detect blood stains is:

A. Benzidine test
B. Teichmann's test
C. Spectroscopic test (Correct Answer)
D. Orthotoluidine test

Explanation: ***Spectroscopic test*** - The **spectroscopic test** is considered the most specific for detecting blood stains because it identifies the characteristic absorption bands of **hemoglobin** and its derivatives. - This test is highly definitive due to the unique **light absorption properties** of blood components, making it less prone to false positives compared to chemical tests. *Benzidine test* - The **benzidine test** is a sensitive preliminary test for blood but is **not specific**, as it reacts with other oxidizing agents (e.g., rust, certain plant peroxidases). - It works by detecting the **peroxidase-like activity of hemoglobin**, leading to color changes but lacks confirmation of blood origin. *Teichmann's test* - **Teichmann's test** (hemin crystal test) is a moderately specific confirmatory test that produces **rhombic crystals of hemin** when heated with glacial acetic acid and a halide salt. - While more specific than presumptive tests, it can sometimes produce **false-negative results** with old or degraded bloodstains and may be less sensitive than spectroscopy. *Orthotoluidine test* - Similar to the benzidine test, the **orthotoluidine test** is another **presumptive test** that detects the peroxidase-like activity of hemoglobin, resulting in a blue-green color change. - It is **highly sensitive but not specific**, meaning it can also give positive reactions with other substances that have similar peroxidase activity, leading to potential false positives.

Question 7: IPC 201 deals with which of the following?

A. Providing false information to the police
B. Causing grievous hurt to another person
C. Kidnapping a person
D. Embalming a body before an autopsy (Correct Answer)

Explanation: ***Embalming a body before an autopsy*** - **IPC (Indian Penal Code) 201** addresses the destruction of evidence or giving false information to screen an offender, specifically focusing on actions that impede justice in criminal investigations. - While not explicitly listing "embalming a body," judicial interpretations and legal precedents recognize that **embalming a body before an autopsy**, when an autopsy is required, would fall under **destruction of evidence** by significantly altering or obliterating crucial forensic clues. *Providing false information to the police* - This act is covered under different sections of the IPC, such as **IPC 182 (False information with intent to cause public servant to use his lawful power to the injury of another person)**, not solely IPC 201. - IPC 201 specifically pertains to actions taken to **screen an offender from legal punishment** by destroying evidence or giving false information, implying a more direct link to a committed offense. *Causing grievous hurt to another person* - This is addressed by **IPC 320 to 326 (Of Hurt)**, which deals with various types of grievous hurt and their punishments. - IPC 201 is related to acts that obstruct justice after a crime, rather than the commission of the crime itself. *Kidnapping a person* - This offense is covered under **IPC 359 to 369 (Of Kidnapping and Abduction)**, detailing different forms of kidnapping and their respective punishments. - Similar to grievous hurt, kidnapping is an original offense, whereas IPC 201 deals with actions taken post-offense to cover up criminal activity.

Question 8: Chicken fat clot is seen in -

A. Antemortem thrombus
B. Currant jelly clot
C. Postmortem clot (Correct Answer)
D. Antemortem wound

Explanation: ***Postmortem clot*** - **"Chicken fat" clot** is a classical postmortem finding observed during autopsy in the **heart chambers and large blood vessels**. - It appears as a **yellowish, gelatinous layer** (plasma with lipids) overlying a **darker red layer** (settled red blood cells) due to gravitational separation of blood components after cessation of circulation. - This appearance indicates **postmortem blood coagulation** and helps distinguish postmortem clots from antemortem thrombi. - **Key differentiating features**: Postmortem clots are smooth, shiny, unattached to vessel walls, and rubbery in consistency. *Antemortem thrombus* - **Antemortem thrombi** form during life and show attachment to the vessel wall (**lines of Zahn**), dull surface, and friable consistency. - They are **firmly adherent** to the endothelium and show evidence of organization with inflammatory response. - The texture is **uniform** without the characteristic yellow-red separation seen in chicken fat clots. *Currant jelly clot* - **Currant jelly clot** is another type of postmortem clot that appears **dark red and gelatinous** throughout. - It forms when red blood cells remain relatively mixed with plasma, unlike the separated appearance of chicken fat clots. - Both are postmortem findings, but have different gross appearances. *Antemortem wound* - **Antemortem wounds** show vital reactions including hemorrhage, inflammation, and tissue response. - Blood at antemortem injury sites shows **active coagulation** during life, not the passive gravitational separation characteristic of chicken fat clots. - The chicken fat appearance is specific to **intravascular postmortem clots**, not wound sites.

Question 9: Which of the following statements are true about antemortem wounds?

A. Vital reaction present (Correct Answer)
B. No inflammatory response
C. Absence of healing attempts
D. Coagulated blood

Explanation: ***Correct: Vital reaction present*** - Antemortem wounds are inflicted **before death**, meaning the body's physiological systems are still active and capable of responding to injury. - **Vital reactions** are the hallmark features of antemortem wounds and include: - **Hemorrhage** with blood infiltration into surrounding tissues - **Inflammatory response** with leukocyte migration and tissue reaction - **Blood coagulation** as an active physiological process - **Healing attempts** if sufficient survival time (fibroblast proliferation, collagen deposition) - **Retraction of wound edges** due to elastic tissue response - The presence of vital reactions definitively confirms the injury occurred while the individual was alive. *Incorrect: No inflammatory response* - The **absence** of inflammatory response indicates a **postmortem wound**, not an antemortem wound. - Inflammation is a vital reaction that requires active physiological processes (vasodilation, leukocyte migration, cytokine release). - When injury occurs after death, these vital reactions cannot occur since circulation and cellular metabolism have ceased. *Incorrect: Coagulated blood* - While blood coagulation occurs in antemortem wounds as part of the body's hemostatic response, coagulated blood can also be observed in some postmortem wounds. - Blood coagulation alone **does not definitively differentiate** between antemortem and postmortem injuries without other vital reactions. - True antemortem coagulation shows **blood infiltration into tissue spaces**, unlike postmortem clotting which remains confined to vessels. *Incorrect: Absence of healing attempts* - The **absence** of healing attempts suggests a **postmortem wound** or death occurring immediately after injury. - In antemortem wounds with adequate survival time, the body initiates healing processes including: - **Fibroblast proliferation** and migration to the wound site - **Collagen deposition** and extracellular matrix remodeling - **Granulation tissue formation** - **Epithelialization** of the wound surface - The presence of healing attempts confirms the individual survived for some time after injury.

Question 10: Which of the following is true regarding adipocere formation?

A. Preservation by saponification (Correct Answer)
B. High temperature needed
C. Cool and dry climate needed
D. Occurs within minutes to hours

Explanation: ***Preservation by saponification*** - Adipocere, also known as **grave wax**, is formed through the process of **saponification**, where body fat hydrolyzes into fatty acids. - This process leads to the formation of a **waxy, grayish-white substance** that can preserve the body tissues. *High temperature needed* - Adipocere formation is actually favored by **cooler temperatures**, which slow down putrefaction and create a more conducive environment for saponification. - **High temperatures** typically accelerate decomposition, making adipocere formation less likely. *Cool and dry climate needed* - While a **cool environment** is favorable, adipocere formation primarily requires a **moist or wet environment**, such as burial in damp soil or immersion in water. - A **dry climate** would generally lead to mummification rather than adipocere formation. *Occurs within minutes to hours* - Adipocere formation is a **slow process** that usually takes **several weeks to months** (typically 3 weeks to 3 months) to become evident, and even longer to fully develop. - It does not occur within minutes or hours, which is the timeframe for early post-mortem changes like livor mortis or rigor mortis.

Want unlimited practice?

Get full access to all questions, explanations, and performance tracking.

Start For Free