NEET-PG 2012 - Forensic Medicine Practice Questions

Q: Which of the following is NOT considered a grievous injury?

Breast contusion. ***Breast contusion*** - A breast contusion, while painful, is generally a **minor injury** that typically resolves without long-term significant functional impairment or disfigurement. - It does not meet the criteria for a grievous injury under **IPC Section 320**, which requires severe, lasting physical harm or functional loss. *Multiple facial scars* - Multiple facial scars can lead to significant and **permanent disfigurement of the face**, which is explicitly listed as a grievous injury under IPC Section 320. - Such scarring can have profound psychological impacts and may require extensive reconstructive surgery. *Femur fracture* - A femur fracture is a **grievous injury** under IPC Section 320 as it constitutes a **"fracture or dislocation of a bone."** - Additionally, it results in **severe pain**, prolonged disability, and often requires extensive medical intervention including surgery, with potential for protracted loss of use of a limb. *Emasculation injury* - Emasculation refers to the **removal or destruction of male reproductive organs**, which is explicitly listed as a grievous injury under IPC Section 320. - This type of injury results in **permanent impairment of reproductive powers** and qualifies as privation of a member or joint.

Q: What is the first external sign of decomposition of a dead body?

Greenish discolouration over right iliac fossa. ***Greenish discolouration over right iliac fossa*** - The **first external sign of decomposition** is typically a **greenish discoloration** that appears over the **right iliac fossa**. - This occurs due to the breakdown of **hemoglobin** by bacteria, particularly *Clostridium perfringens*, in the **cecum**, which is located in this region. - It typically appears **12-24 hours after death** under normal environmental conditions. *Decomposition of liver and intestine* - While internal organs like the liver and intestine do decompose, their decomposition is an **internal process** and not the **first external sign**. - Internal putrefaction precedes external signs but is not visually observable from the exterior initially. *Greenish discolouration over dependent parts* - Greenish discolouration over dependent parts represents a **later stage of decomposition** when putrefactive changes spread throughout the body. - This occurs after the initial greenish discoloration in the right iliac fossa as bacterial action and gases spread from the intestines to other body regions. - This is NOT the first external sign but rather a progression of decomposition. *Blood stained froth from mouth* - **Blood-stained froth from the mouth** can be seen in various conditions, such as **drowning**, **pulmonary edema**, or certain types of poisoning, but it is not related to decomposition. - This finding is more indicative of the cause of death or agonal/perimortem changes rather than postmortem decomposition.

Q: What is the effect of strychnos nux vomica poisoning on a patient's consciousness?

Remains conscious throughout the poisoning. ***Remains conscious throughout the poisoning*** - Patients poisoned with **strychnine** (from *Strychnos nux vomica*) typically remain **fully conscious** and aware of their surroundings, even during severe convulsions. - This preservation of consciousness amidst intense muscular spasms is a **distinguishing and agonizing feature** of strychnine poisoning. *Becomes unconscious within an hour* - This statement is generally incorrect for strychnine poisoning, as the prominent feature is maintained consciousness alongside **neurological excitability**. - Loss of consciousness is not a **primary or direct effect** of strychnine, though severe complications could indirectly affect it. *Becomes unconscious only in severe cases* - While extreme metabolic derangements or secondary complications (e.g., severe hypoxia from prolonged seizures) might eventually lead to altered consciousness, the **direct pharmacological action** of strychnine does not cause unconsciousness. - The patient remains conscious even through the most severe and life-threatening **tetanic spasms**. *Becomes unconscious immediately after exposure* - Strychnine primarily acts as an **antagonist to glycine receptors** in the spinal cord and brainstem, leading to exaggerated reflexes and muscle overactivity, not immediate unconsciousness. - The onset of symptoms, including muscular spasms, typically occurs within **15-30 minutes** of exposure, with consciousness generally preserved.

Q: In medical negligence cases, what is the primary role of the plaintiff?

Files case in civil court. ***Files case in civil court*** - The **plaintiff** is the party who initiates a lawsuit, claiming to have been harmed by the actions of another party. - In medical negligence cases, this typically involves someone who alleges injury due to substandard medical care and seeks **compensation** through the legal system. - Filing the case in civil court is the **primary and defining role** of the plaintiff. *Acts as defender* - The **defender** (or defendant) is the party against whom a lawsuit is brought, and they are responsible for responding to the plaintiff's claims. - In medical negligence, the healthcare provider accused of negligence would be the defender. *Gives judgement* - Giving judgment is the function of the **court** or judge and is a neutral adjudication of the facts and application of the law. - The plaintiff's role is to present their case and evidence to persuade the court, not to issue the final decision. *Issues summons to defendant* - Issuing summons is a **court function**, not the plaintiff's role. - The court issues summons after the plaintiff files the case, directing the defendant to appear and respond to the allegations.

Q: Dirt collar or grease collar is seen in which type of wound?

Firearm entry wound. ***Firearm entry wound*** - A **dirt collar** or **grease collar** is a characteristic finding in a **firearm entry wound**, caused by the wiping off of dirt, lubricant, and other residues from the projectile as it penetrates the skin. - This reddish-brown to black ring around the wound entrance is a crucial indicator of the **direction of fire** and the nature of the injury. *Punctured wound by sharp weapon* - This type of wound is characterized by a small, deep opening caused by a sharp, pointed object, and typically lacks the **residue collection** that forms a dirt or grease collar. - While there may be some contamination, it does not form a distinct, recognizable collar as seen with firearm projectiles. *Lacerated wound* - A lacerated wound is an irregular tear in the skin caused by a blunt force trauma, characterized by **jagged edges** and often bridging tissue. - These wounds are not typically associated with a "dirt collar" as they are due to tearing rather than a projectile wiping off material. *Stab wound* - A stab wound is caused by a sharp object penetrating the skin, with depth greater than width, and is defined by its clean-cut edges. - While there might be some *foreign material* deposited, it does not present as a distinct **grease or dirt collar** because the mechanism of injury (cutting/stabbing) differs from that of a bullet.

Q: Which of the following sources provides the highest yield and most reliable samples for DNA fingerprinting?

Blood. ***Blood*** - **Blood** provides a high concentration of **nucleated cells** (e.g., white blood cells), yielding abundant and high-quality DNA. - The DNA obtained from blood is typically well-preserved and less prone to degradation or contamination compared to other sources. *Saliva* - While saliva contains DNA from **buccal epithelial cells** and white blood cells, its DNA yield can be lower and more variable due to mucous and bacterial contamination. - DNA from saliva may be more subject to degradation, especially if not collected and stored properly. *Tooth* - **Teeth** can be a good source of DNA, particularly from the **pulp**, but extraction can be challenging and destructive. - The DNA yield varies depending on the tooth's condition and the extraction method, and it is generally reserved for situations where other sources are unavailable or severely degraded. *Buccal mucosa* - **Buccal mucosa** swabs are a common and non-invasive source of DNA from **epithelial cells**. - While suitable for many applications, the DNA yield can be lower than blood, and the sample may be more susceptible to surface contamination.

Q: La facies sympathique is seen in ?

Hanging. ***Hanging*** - **La facies sympathique** is a term used to describe the facial appearance in cases of **hanging**, characterized by a serene or peaceful look often associated with venous congestion rather than extreme distress. - This appearance is due to the obstruction of venous return from the head while arterial supply continues for a short period, leading to a relatively natural facial expression. *Strangulation* - **Strangulation** typically results in a more dramatic and distressed facial appearance, often with prominent signs of struggle, petechial hemorrhages, and cyanosis. - The compression of both arteries and veins, along with the trachea, leads to rapid and severe cerebral anoxia and overt signs of asphyxia. *Myocardial insufficiency* - **Myocardial insufficiency** (heart failure) usually presents with signs of impaired circulation, such as pallor, cyanosis (especially acrocyanosis), edema, and shortness of breath, but not a specific "sympathetic facies." - The facial expression would more likely reflect distress from dyspnea or discomfort rather than a serene appearance. *Railway accident* - Fatalities from **railway accidents** typically involve severe trauma, disfigurement, and extensive injuries to the head and body. - The facial appearance in such cases would be consistent with massive blunt force trauma, lacerations, or crush injuries, which are inconsistent with "la facies sympathique."

Q: What does the term 'vitriolage' refer to in a medical context?

The act of throwing sulfuric acid at someone.. ***The act of throwing sulfuric acid at someone.*** - **Vitriolage** specifically refers to an assault where **sulfuric acid** (historically called **oil of vitriol**) is used to disfigure or injure someone. - This practice is a severe form of **acid attack**, often resulting in extensive burns, disfigurement, and permanent damage. *The act of using vitriol to harm someone.* - While correct in a broad sense, this option is less specific. **Vitriol** refers specifically to sulfuric acid, and the act of vitriolage implies *throwing* it, rather than just "using" it broadly. - The term specifically highlights the **assaultive nature** and the characteristic manner of injury. *The act of causing harm through chemical means.* - This definition is too general; vitriolage is a particular type of chemical harm. There are many other ways to cause chemical harm (e.g., poisoning, chemical burns from other substances) that are not considered vitriolage. - The term is historically and medically tied to the use of a specific corrosive substance: **sulfuric acid**. *The act of poisoning someone with toxic substances.* - Poisoning typically involves *ingestion* or *internal exposure* to toxic substances, leading to systemic effects. - **Vitriolage** refers to *external application* (throwing) of a highly corrosive substance, causing localized and severe tissue damage rather than systemic poisoning.

Q: Widmark's formula helps in the measurements of blood level of:

Alcohol. ***Alcohol*** - **Widmark's formula** is a widely used method to estimate an individual's **blood alcohol concentration (BAC)** based on the amount of alcohol consumed, body weight, and gender. - This formula helps in forensic toxicology and clinical settings to assess the level of **intoxication**. *Barbiturate drugs* - The levels of **barbiturate drugs** are typically measured using techniques like **gas chromatography-mass spectrometry (GC-MS)** or **high-performance liquid chromatography (HPLC)**. - While various formulas might exist for pharmacokinetic modeling of specific drugs, Widmark's formula is not applicable to barbiturates. *Cocaine derivatives* - **Cocaine and its metabolites** (e.g., benzoylecgonine) are detected and quantified in biological samples (blood, urine) using analytical methods such as **immunoassay**, **GC-MS**, or **LC-MS/MS**. - Widmark's formula is specific to alcohol metabolism and distribution, not cocaine. *Benzodiazepine medications* - The measurement of **benzodiazepine concentrations** in blood is predominantly done using **chromatographic methods** (e.g., GC-MS, LC-MS/MS) due to their complex metabolism and structural diversity. - Widmark's formula is not designed to calculate levels of benzodiazepines.

Q: Muttering delirium is seen with: NEET 13

Datura. ***Datura*** - **Datura poisoning** is characterized by an **anticholinergic toxidrome**, which includes central nervous system effects like **muttering delirium, hallucinations**, and disorientation. - The patient exhibits features like **dilated pupils, dry mouth, flushed skin**, and **tachycardia** due to the blockage of muscarinic acetylcholine receptors. *Castor oil plant* - The **castor oil plant** contains **ricin**, a potent toxin that causes **gastrointestinal symptoms** (nausea, vomiting, abdominal pain, bloody diarrhea) and eventually multi-organ failure. - It does not typically cause the central nervous system effects like **muttering delirium** seen with Datura poisoning. *Cocaine (stimulant)* - **Cocaine** is a central nervous system stimulant that causes **euphoria, agitation, paranoia, dilated pupils**, and **tachycardia**. - While it can cause psychosis, the specific **muttering delirium** is not its hallmark presentation; instead, it is associated with a hyperadrenergic state. *Monkshood (Aconitum)* - **Monkshood** contains **aconitine**, a neurotoxin that primarily affects cardiac and neurological function, causing **paresthesias, muscle weakness, bradycardia**, and potentially fatal arrhythmias. - It does not typically cause the **muttering delirium** with features of an anticholinergic syndrome.

Question 1

Which of the following is NOT considered a grievous injury?

Accepted Answer

Breast contusion

Answer

Multiple facial scars

Answer

Femur fracture

Answer

Emasculation injury

Question 2

What is the first external sign of decomposition of a dead body?

Accepted Answer

Greenish discolouration over right iliac fossa

Answer

Decomposition of liver and intestine

Answer

Greenish discolouration over dependent parts

Answer

Blood stained froth from mouth

Question 3

What is the effect of strychnos nux vomica poisoning on a patient's consciousness?

Accepted Answer

Remains conscious throughout the poisoning

Answer

Becomes unconscious within an hour

Answer

Becomes unconscious only in severe cases

Answer

Becomes unconscious immediately after exposure

Question 4

In medical negligence cases, what is the primary role of the plaintiff?

Accepted Answer

Files case in civil court

Answer

Acts as defender

Answer

Gives judgement

Answer

Issues summons to defendant

Question 5

Dirt collar or grease collar is seen in which type of wound?

Accepted Answer

Firearm entry wound

Answer

Lacerated wound

Answer

Stab wound

Answer

Punctured wound by sharp weapon

Question 6

Which of the following sources provides the highest yield and most reliable samples for DNA fingerprinting?

Accepted Answer

Blood

Answer

Saliva

Answer

Tooth

Answer

Buccal mucosa

Question 7

La facies sympathique is seen in ?

Accepted Answer

Hanging

Answer

Strangulation

Answer

Myocardial insufficiency

Answer

Railway accident

Question 8

What does the term 'vitriolage' refer to in a medical context?

Accepted Answer

The act of throwing sulfuric acid at someone.

Answer

The act of using vitriol to harm someone.

Answer

The act of causing harm through chemical means.

Answer

The act of poisoning someone with toxic substances.

Question 9

Widmark's formula helps in the measurements of blood level of:

Accepted Answer

Alcohol

Answer

Barbiturate drugs

Answer

Cocaine derivatives

Answer

Benzodiazepine medications

Question 10

Muttering delirium is seen with: NEET 13

Accepted Answer

Datura

Answer

Castor oil plant

Answer

Cocaine (stimulant)

Answer

Monkshood (Aconitum)

NEET-PG 2012 — Forensic Medicine