Asphyxial Deaths — MCQs
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The image shows:
The probable cause of death of the patient shown below is:
A known epileptic patient was found in the bathroom in this position. The image depicts:
Identify the cause of death in this picture:
The probable cause of death of the patient in the image shown is:
Identify the cause of death in this case:
The dead body of a child was recovered from a river with froth around his mouth, which reappeared even after wiping it off. Which postmortem finding is not seen in this case?
A girl from the village was found dead in the lake and was taken out. It is a case of ante mortem drowning. All are true about this case except?
The friend and victim had alcohol and got into an argument over a common girlfriend, following which the friend kills the victim by sitting on his chest and covering his nose and mouth. This is an example of?
In dry drowning:
Asphyxial Deaths Indian Medical PG Practice Questions and MCQs
Question 211: The image shows:
- A. Champignon de mousse
- B. Cutis anserina
- C. Hydrocution (Correct Answer)
- D. Emphysema aquosum
Explanation: ***Hydrocution*** - **Hydrocution** (also known as **immersion syndrome** or **vagal inhibition**) refers to sudden death upon immersion in cold water due to cardiac arrest triggered by vagal stimulation. - Unlike other drowning findings, hydrocution is primarily a **mechanism of death** rather than a specific visible post-mortem sign. Victims may show **minimal external findings** with possible facial pallor or congestion. - This is often a **diagnosis of exclusion** in forensic pathology when a body is found in water without typical drowning signs. - **Note:** The specific visible features in this image that indicate hydrocution over other drowning findings would require clinical correlation. *Champignon de mousse* - This term, also known as **foam mushroom** or **drowning foam**, refers to fine, white, stable foam emanating from the mouth and nostrils of a drowned person. - This is a **classic external sign of drowning** caused by mixing of air, water, and surfactant from the lungs during agonal respiration. - While associated with typical drowning, this specific finding is not the primary feature being identified in this case. *Cutis anserina* - **Cutis anserina** (goose flesh or goosebumps) is a post-mortem finding caused by contraction of arrector pili muscles. - Commonly seen in bodies recovered from cold water due to cadaveric spasm or cold exposure. - Presents as **discrete papules at hair follicles** giving a characteristic bumpy appearance to the skin. *Emphysema aquosum* - **Emphysema aquosum** refers to overdistension of lungs with trapped air and water in drowning. - This is an **internal pathological finding** detected at autopsy, showing overinflated lungs that may not collapse when the chest is opened. - Not visible on external examination and requires post-mortem dissection to identify.
Question 212: The probable cause of death of the patient shown below is:
- A. Hanging (Correct Answer)
- B. Strangulation
- C. Throttling
- D. Smothering
Explanation: ***Hanging*** - The image shows a **ligature mark** that is typically **oblique** (running upward towards the point of suspension), characteristic of hanging where the body's weight causes compression - The pattern indicates **suspension** with the ligature tightening due to gravitational force - Internal findings would show **asymmetric vascular compression** and potential fracture of hyoid bone or thyroid cartilage - The mark shows features of **ante-mortem injury** with ecchymosis and abrasion *Strangulation* - **Ligature strangulation** typically produces a **horizontal ligature mark** (circumferential) around the neck, as the force is applied by an external agent rather than body weight - Would show more uniform pressure distribution around the entire neck - Often associated with signs of struggle and other injuries - The oblique pattern seen here is more consistent with hanging *Throttling* - **Manual strangulation** (throttling) shows characteristic **finger/thumb marks** as contusions or abrasions on the neck - Typically presents with **multiple small bruises** corresponding to fingertip pressure points - May show **crescentic nail marks** (from fingernails) - No ligature mark would be present, unlike the image shown *Smothering* - Involves obstruction of **nose and mouth** to prevent air entry, not neck compression - Would not produce ligature marks on the neck - May show petechiae around the eyes and face, bruising around mouth/nose - The neck injury pattern shown is inconsistent with smothering
Question 213: A known epileptic patient was found in the bathroom in this position. The image depicts:
- A. Dry drowning
- B. Immersion syndrome
- C. Secondary drowning
- D. Shallow water drowning (Correct Answer)
Explanation: ***Shallow water drowning*** - This image depicts a person with their head submerged in a shallow basin of water, which is characteristic of **shallow water drowning**. - Given the patient's history of **epilepsy**, a seizure could have led to a loss of consciousness and subsequent submersion in the shallow water, making this the most likely scenario. *Dry drowning* - **Dry drowning** (or post-immersion syndrome) refers to symptoms that occur hours after exiting the water due to water inhalation causing laryngospasm. - This term is less accurate for a scene of immediate death by submersion as shown in the image, as laryngospasm prevents water from entering the lungs. *Immersion syndrome* - **Immersion syndrome** typically refers to sudden death from cardiac arrest due to cold water immersion, often without significant water inhalation. - The image does not provide information about water temperature or other factors suggestive of sudden cardiac event unrelated to airway obstruction by water. *Secondary drowning* - **Secondary drowning** (or delayed drowning) is a non-medical term referring to complications that develop hours to days after a near-drowning incident, such as acute respiratory distress syndrome (ARDS), due to water irritating the lungs. - The image shows the immediate scene of drowning, not a delayed complication.
Question 214: Identify the cause of death in this picture:
- A. Partial hanging (Correct Answer)
- B. Complete hanging
- C. Lynching
- D. Judicial hanging
Explanation: ***Partial hanging*** - In the image, the depicted individual's **feet are still in contact with the ground or a surface (a table)**, indicating that the body weight is not fully suspended. - This suggests that there is only partial suspension, where some body weight is supported, characteristic of **partial hanging**. *Complete hanging* - This diagnosis is incorrect because in **complete hanging**, the entire body weight is suspended by the ligature, with no part of the body touching the ground or any supporting surface. - The image clearly shows the person's feet or lower body supported by a table, which contradicts the definition of complete hanging. *Lynching* - **Lynching** refers to the unlawful killing of a person by a mob, often by hanging, as a form of extrajudicial punishment. - While it can involve hanging, the term describes the **method or context of the killing by a group**, not the physical mechanics of the suspension itself. *Judicial hanging* - **Judicial hanging** is a form of capital punishment carried out under legal authority. - Key features include a **long drop** to induce immediate cervical fracture and brainstem injury, and it is a **complete hanging**. This doesn't apply to the scenario in the image.
Question 215: The probable cause of death of the patient in the image shown is:
- A. Hanging (Correct Answer)
- B. Strangulation
- C. Throttling
- D. Gagging
Explanation: ***Hanging*** - The image shows a **ligature mark that is oblique and incomplete**, extending upwards towards the **angle of the jaw or mastoid process** - This is **pathognomonic for hanging** where the knot/point of suspension creates upward pressure - The mark is typically **above the thyroid cartilage** and **higher on one side** (opposite to the knot) - **Key differentiating feature:** Oblique, upward-directed ligature mark with a gap at the knot site *Strangulation* - Ligature strangulation produces a **horizontal, complete ligature mark** that encircles the neck **at or below the thyroid cartilage** - The mark is typically **uniform in depth** and does not show the characteristic upward obliquity - Usually **homicidal**, whereas hanging is most commonly suicidal *Throttling* - A form of **manual strangulation** using hands to compress the neck - Produces **fingernail abrasions**, **finger pad bruises**, and **thumb marks** on the neck - **No ligature mark** is present; instead, there are multiple small contusions and scratch marks - Almost always **homicidal** *Gagging* - Involves **obstruction of the mouth and/or nose** to prevent breathing or vocalization - Does **not produce ligature marks on the neck** - May show injuries around the mouth, lips, or face, but the neck remains unmarked - The mechanism is airway obstruction, not neck compression
Question 216: Identify the cause of death in this case:
- A. Electrocution
- B. Drowning
- C. Immersion syndrome (Correct Answer)
- D. Secondary drowning
Explanation: ***Immersion syndrome*** - The image shows a body with **cutis anserina** (goosebumps) and possibly **frothy fluid at the mouth/nose**, which are classic signs suggestive of a sudden death upon immersion in cold water. - Immersion syndrome is a form of **sudden death in cold water**, usually without anatomical findings of drowning, believed to be due to a sudden vagal reflex from cold shock. *Electrocution* - Electrocution typically presents with **electrical burns** at the points of contact and exit, along with internal organ damage, which are not visible or suggested here. - There are no visible signs indicative of current entry or exit points, such as **charring or metallic deposits**. *Drowning* - While immersion in water is involved, **true drowning** involves the aspiration of water into the lungs leading to asphyxia, typically presenting with significant pulmonary edema and findings like **foam in the airways** and possibly **ruptured alveoli**. - Immersion syndrome differs from true drowning in that death occurs very rapidly, often before significant water aspiration has occurred, due to **cardiac arrhythmia or laryngospasm**. *Secondary drowning* - **Secondary drowning (or dry drowning)** refers to delayed death from aspiration of a small amount of water that causes laryngospasm or pulmonary edema, typically occurring hours to days after the initial event. - The context of the question and the immediate presentation in the image point towards an immediate cause of death upon immersion, not a delayed effect.
Question 217: The dead body of a child was recovered from a river with froth around his mouth, which reappeared even after wiping it off. Which postmortem finding is not seen in this case?
- A. High concentration of arsenic from shaft of hair (Correct Answer)
- B. Voluminous and ballooned out lungs
- C. Cadaveric spasm with mud in closed fist
- D. Paltauf's hemorrhage in sub pleura
Explanation: ***High concentration of arsenic from the shaft of hair*** - The presence of arsenic in hair is indicative of chronic **arsenic poisoning**, which is unrelated to drowning. - The scenario describes a body recovered from a river with froth, suggesting **drowning**, not poisoning. *Voluminous and ballooned out lungs* - This is a classic postmortem finding in drowning due to the aspiration of water and air trapping, leading to **pulmonary emphysema acquosum**. - The lungs appear large and distended, often with impressions of the ribs on their surfaces. *Cadaveric spasm with mud in a closed fist* - **Cadaveric spasm** (instantaneous rigor) can occur in cases of violent death, intense physical exertion, or emotional stress just before death, often seen in drowning victims. - Finding foreign material like mud or weeds clutched tightly in the hand is a significant indicator that the victim was **alive and struggling** in the water during submersion. *Paltauf's hemorrhage in subpleura* - **Paltauf's hemorrhages** are small, pinpoint hemorrhages found under the pleural surface (subpleural) and are a characteristic sign of drowning. - They result from the rupture of capillaries due to the sudden increase in intrathoracic pressure during the struggle to breathe underwater.
Question 218: A girl from the village was found dead in the lake and was taken out. It is a case of ante mortem drowning. All are true about this case except?
- A. Froth on nose and mouth
- B. Cadaveric spasm in hand muscle
- C. Washerman hand and finger (Correct Answer)
- D. Water in the stomach
- E. Diatoms test positive
Explanation: ***Washerman hand and finger*** - **Washerman's hand and feet** (cutis anserina) refers to the wrinkled, sodden appearance of skin on the palms and soles due to prolonged immersion in water. - This is a **post-mortem change** that develops after death as a result of water absorption into the skin, typically appearing after **2-3 hours** of immersion. - While it indicates immersion in water, it does **not specifically signify ante-mortem drowning** as it can occur in bodies submerged after death (post-mortem submersion). - This is the **correct answer** to the "except" question as it is not a vital sign of ante-mortem drowning. *Froth on nose and mouth* - **Fine, white, tenacious froth** (mushroom-like foam) at the nose and mouth is a classic sign of **ante-mortem drowning**. - Results from violent mixing of air, mucus, and water in the airways during respiratory efforts while drowning. - This is a **vital sign** indicating the person was alive during submersion. *Cadaveric spasm in hand muscle* - **Cadaveric spasm** (instantaneous rigor mortis) can occur in **ante-mortem drowning** when the victim grasps objects like weeds, mud, or clothes in the final moments before death. - This represents a **vital phenomenon** reflecting a final act of vitality and strongly suggests the person was alive and conscious at the moment of submersion. *Water in the stomach* - Presence of water in the stomach is a common finding in **ante-mortem drowning** as the victim actively swallows water during the struggle and aspiration phase. - Indicates **vital swallowing** during life, supporting the diagnosis of ante-mortem drowning. - Typically, more than **500 mL** of water in stomach suggests ante-mortem drowning.
Question 219: The friend and victim had alcohol and got into an argument over a common girlfriend, following which the friend kills the victim by sitting on his chest and covering his nose and mouth. This is an example of?
- A. Gagging
- B. Smothering (Correct Answer)
- C. Choking
- D. Throttling
Explanation: ***Smothering*** - This scenario describes **manual obstruction** of the mouth and nose, preventing air entry without external neck compression. - The act of sitting on the chest further restricts respiratory movements, contributing to **asphyxia**. *Gagging* - Gagging refers to the obstruction of the **oral cavity** due to material placed inside the mouth, typically to prevent speaking or crying out. - While it can contribute to asphyxia, the primary mechanism described here involves external covering of both nose and mouth. *Choking* - Choking involves the **internal obstruction** of the airway, usually by a foreign body lodged in the pharynx or larynx. - This scenario explicitly details external occlusion of the respiratory orifices, not internal blockage. *Throttling* - Throttling is a form of **manual strangulation** that involves direct compression of the neck by hands or forearm. - The description of covering the nose and mouth rather than compressing the neck rules out throttling.
Question 220: In dry drowning:
- A. Water does not enter lungs because of laryngeal spasm (Correct Answer)
- B. Seen in alcoholics due to drowning in shallow pool
- C. Death occurs due to sudden immersion in cold water
- D. Death occurs in few days of submersion episode
Explanation: ***Water does not enter lungs because of laryngeal spasm*** - In **dry drowning**, water does not directly enter the lungs but instead causes **laryngospasm**, leading to **suffocation**. - This **reflexive closure of the larynx** prevents water from entering the trachea and bronchial tree during submersion. *Seen in alcoholics due to drowning in shallow pool* - While alcohol consumption can be a factor in drowning incidents, **dry drowning** specifically refers to the mechanism of death due to laryngospasm, not necessarily the circumstances or risk factors. - Drowning in a shallow pool is a circumstance of drowning; it does not define the physiological mechanism of dry drowning. *Death occurs due to sudden immersion in cold water* - Death due to sudden immersion in cold water often leads to **cardiac arrest** (cold shock response) or **hypothermia**, which are different mechanisms from the laryngospasm seen in dry drowning. - Although these can be contributing factors in some drowning deaths, they are not the primary cause of death in dry drowning. *Death occurs in few days of submersion episode* - Death occurring days after a submersion episode is typical of **secondary drowning** (also known as delayed drowning or "wet drowning" with subsequent complications), where inhaled water causes **acute respiratory distress syndrome (ARDS)** or other pulmonary issues. - In **dry drowning**, death occurs rapidly due to **asphyxia** from laryngospasm and not delayed respiratory complications.
Practice by Chapter
Pathophysiology of Asphyxia
Practice Questions
Hanging
Practice Questions
Strangulation
Practice Questions
Suffocation
Practice Questions
Traumatic Asphyxia
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Drowning
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Choking
Practice Questions
Chemical Asphyxiants
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Positional Asphyxia
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Autoerotic Asphyxia
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Pediatric Asphyxia
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Postmortem Findings in Asphyxia
Practice Questions
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