NEET-PG 2013 - Forensic Medicine Practice Questions

Q: Cognizable offence comes under which section of CrPC? (NEET 13)

2 (c). ***Option 2 (c)*** - Section **2(c)** of the Criminal Procedure Code (CrPC) defines a **cognizable offense**. - A cognizable offense is one in which a police officer may **arrest without a warrant** and commence investigation without the permission of a magistrate. *Option 1 (a)* - This section reference is incorrect as there is no relevant definition under **Section 1(a)** that pertains to cognizable offenses. - Section 1 of CrPC deals with the **short title, extent, and commencement** of the code, not definitions. *Option 2 (b)* - Section **2(b)** of the CrPC defines "**charge**." - A charge includes any **head of a charge** when the charge contains more than one head. *Option 2 (1)* - This section reference is not a standard way of citing definitions within the CrPC (should be lowercase alphabet). - Even if interpreted as **Section 2(l)**, it defines **"non-cognizable offense"**, which is the opposite of what the question asks.

Q: Police inquest is most straightforward in:

Suicidal death. ***Suicidal death*** - Suicidal deaths with clear evidence (suicide note, history of depression, consistent physical findings) are typically the **most straightforward** for police inquest among unnatural deaths. - The investigation primarily focuses on **confirming self-infliction** and ruling out foul play, which is relatively simple when circumstances are clear and consistent. - Unlike homicide, there is **no perpetrator to identify**, and unlike dowry death, there are no complex familial or legal entanglements to investigate. - The inquest becomes straightforward when evidence is consistent: method matches injuries, suicide note is present, and witness statements corroborate suicidal intent. *Death by animals* - Death by animal attacks involves **complex liability investigations** including determining provocation, owner negligence, and whether proper safety measures were in place. - Requires investigation into whether the animal was **improperly restrained**, whether the victim provoked the attack, and potential criminal/civil liability of the owner. - Scene reconstruction and expert veterinary input may be needed, making it more complex than straightforward suicide cases. *Homicidal death* - Homicidal deaths involve **intentional killing by another person**, requiring extensive investigation into motive, suspects, weapon identification, and evidence collection. - These are the **most complex inquests**, involving forensic analysis, witness interviews, crime scene reconstruction, and protracted legal proceedings. *Dowry death* - Dowry deaths under Section 304B IPC are **highly complex**, involving investigation of harassment, dowry demands, and family dynamics over an extended period. - Requires proving that death occurred within **7 years of marriage** and was connected to dowry demands, often involving multiple suspects and sensitive family investigations.

Q: Datura poisoning is characterized by:

Dilated pupil. ***Dilated pupil*** - **Datura poisoning** is characterized by **anticholinergic symptoms**, including **mydriasis** (dilated pupils) due to the blockade of muscarinic receptors in the iris. - The classic mnemonic "hot as a hare, blind as a bat, dry as a bone, red as a beet, mad as a hatter" highlights the systemic effects, with "blind as a bat" specifically referring to **dilated pupils** and blurred vision. *Pinpoint pupil* - **Pinpoint pupils** (miosis) are typically associated with **opioid toxicity** or **cholinergic poisoning**, which are opposite to the effects of datura. - Datura acts as an **antimuscarinic agent**, preventing acetylcholine from constricting the pupil. *Dilated salivary gland* - **Datura poisoning** causes **dry mouth** due to the inhibition of salivary gland secretions, as it blocks muscarinic receptors responsible for glandular activity. - Therefore, a **dilated salivary gland** (implying increased activity or size) is not a characteristic feature; rather, there is a significant reduction in salivation. *Decreased temperature* - **Datura poisoning** typically leads to **hyperthermia** (increased body temperature) due to the inhibition of sweating, which impairs the body's ability to dissipate heat. - **Decreased temperature** would be an atypical finding and is more commonly seen in conditions like hypothermia or specific intoxications that depress thermoregulation.

Q: An incised-looking laceration is seen in all except:

Chest. ***Chest*** - The skin and subcutaneous tissue over the chest are generally **pliable and abundant**, allowing tissues to stretch and tear irregularly rather than creating a clean, incised-looking wound. - Due to the **underlying musculature and lack of prominent bony structures** just beneath the skin, impacts tend to cause contusions, irregular lacerations, or deeper tissue damage rather than sharp, distinct cuts. *Shin* - The shin has minimal subcutaneous tissue and skin that is **tightly bound over the tibia**, a prominent bony structure. - Impacts here often cause the skin to be compressed against the bone, leading to a **clean, sharp tear that mimics an incised wound**. *Zygomatic bone* - The skin over the zygomatic bone (cheekbone) is **thin and adheres closely to the underlying bone**. - Trauma to this area can result in a **linear, incised-appearing laceration** due to the skin being split against the rigid bony surface. *Iliac crest* - Similar to the shin and zygomatic bone, the iliac crest is a **superficial bony prominence with thin skin and limited subcutaneous tissue**. - A blunt force impact can cause the skin to **split cleanly over the bone**, creating an incised-looking laceration.

Q: Causing miscarriage is punishable under which IPC:

Sec 312 IPC. ***Sec 312 IPC*** - This section of the Indian Penal Code specifically deals with **causing miscarriage** and outlines the penalties for such acts. - It differentiates between miscarriage caused with or without the **woman's consent**, and also considers if the act is performed in **good faith** to save the woman's life. *Sec 320 IPC* - This section defines "grievous hurt," which includes severe injuries leading to permanent disability or life-threatening conditions. - While miscarriage can be a severe outcome, **Sec 320** focuses on the nature of the injury to the person rather than the specific act of causing miscarriage. *Sec 311 IPC* - This section pertains to **causing miscarriage of a child quick with child** without the consent of the woman and without good faith to save her life. - It carries a harsher punishment than Sec 312 because it involves a fetus that is considered more developed and near viability. *Sec 314 IPC* - This section deals with the **death caused by an act done with intent to cause miscarriage**. - It applies when a person commits an act to cause miscarriage, and as a result, the woman dies, even if the intent was not to cause her death.

Q: DNA fingerprinting can be done with all, except:

RBC. ***RBC*** - **Mature red blood cells** lack a nucleus and therefore do not contain **DNA**. - DNA fingerprinting relies on analyzing an individual's unique DNA sequence, which is not present in RBCs. *Saliva* - Saliva contains **epithelial cells** from the mouth, which have intact nuclei and thus sufficient DNA for analysis [2]. - It is a common and non-invasive source of DNA for forensic and genetic testing [2]. *WBC* - **White blood cells** (leukocytes) are nucleated cells that contain a full complement of DNA [2]. - They are an excellent source of DNA for genetic analysis, including DNA fingerprinting. *Spermatozoa* - **Sperm cells** are haploid and contain a nucleus with DNA, making them suitable for DNA fingerprinting [1]. - They are frequently used in forensic cases, particularly in sexual assault investigations [1].

Q: Medical etiquette is related to:

Courtesy observed between doctors. ***Courtesy observed between doctors*** - **Medical etiquette** refers to the code of conduct and conventional rules governing **professional courtesy and behavior between medical practitioners**. - It encompasses the proper way doctors should interact with their **professional colleagues**, including referral practices, respecting each other's patients, and maintaining professional dignity. - This is the classical and specific definition of medical etiquette as taught in forensic medicine and medical jurisprudence. *Professional guidelines for doctors* - This term is **too broad and vague** as it could encompass ethics, etiquette, legal obligations, and clinical protocols. - While etiquette is part of professional conduct, this option lacks the specificity that defines medical etiquette as **interpersonal courtesy among doctors**. *Legal obligations of doctors* - These relate to **medical jurisprudence** and include legally binding duties like maintaining confidentiality, obtaining informed consent, and following medicolegal procedures. - Legal obligations are enforced by law, whereas etiquette deals with **conventional professional courtesy**, not legal mandates. *Ethical principles guiding doctors* - **Medical ethics** encompasses broader moral principles like beneficence, non-maleficence, autonomy, and justice. - Ethics provides the philosophical and moral framework for medical practice, while etiquette is specifically about **conventional rules of professional behavior and courtesy** between doctors.

Q: Foamy liver is seen in:

Putrefaction. ***Putrefaction*** - **Foamy liver** is a characteristic post-mortem finding in **putrefaction**, the process of post-mortem decomposition of body tissues. - **Gas-forming bacteria** (especially Clostridium species) produce gases like **hydrogen sulfide, methane, and carbon dioxide** that accumulate within the liver parenchyma. - This creates multiple **gas bubbles** throughout the liver tissue, giving it a characteristic **frothy or foamy appearance** on sectioning. - This is part of the broader putrefactive changes that include gas accumulation in blood vessels (marbling), body cavities, and soft tissues. *Arsenic poisoning* - Acute arsenic poisoning causes **fatty degeneration of the liver**, congestion, and characteristic gastrointestinal findings. - Post-mortem findings include **"rice water" stools**, gastroenteritis, and hepatic congestion, but NOT the foamy liver appearance. - The liver may show fatty changes and cellular necrosis, but gas bubble formation is not a characteristic feature. *Electrocution* - **Electrocution** causes death primarily through cardiac arrest or respiratory paralysis. - Post-mortem findings include **thermal burns** at entry and exit points, Joule burns, and sometimes arborescent markings. - It does not cause foamy liver; tissue changes are related to current passage and thermal effects. *Hanging* - **Hanging** results in **asphyxial death** with characteristic findings of mechanical asphyxia. - Typical findings include **ligature mark**, petechial hemorrhages, facial congestion, and cyanosis. - Does not cause foamy liver, as gas production within hepatic tissue is not a consequence of mechanical asphyxia.

Q: Cause of death for drowning in cold water:

Inability to breathe (asphyxia). ***Inability to breathe (asphyxia)*** - Drowning fundamentally involves **inhalation of water** into the airway, which prevents gas exchange in the lungs, leading to **asphyxia**. - In cold water, the initial gasp reflex can lead to rapid aspiration of water, causing immediate **laryngospasm** and closure of the airway, resulting in inability to breathe. - Asphyxia remains the **most common mechanism** across all types of drowning, including cold water cases. *Loss of consciousness due to hypoxia* - While **hypoxia** certainly occurs in drowning due to lack of gas exchange, loss of consciousness is a *consequence* of prolonged asphyxia, not the primary cause of death. - The immediate cause of death is the inability to oxygenate the blood due to water filling the lungs or severe laryngospasm. *Cardiac arrest due to vagal inhibition* - **Vagal inhibition** (also called **hydrocution** or **immersion syndrome**) is an important mechanism specifically in **cold water drowning**. - Sudden immersion in cold water can trigger massive vagal stimulation leading to immediate cardiac arrest (often asystole) before significant water aspiration occurs. - However, this mechanism occurs in a **minority of cold water drowning cases**, while asphyxia remains the predominant cause of death overall. *Cardiac arrest due to ventricular fibrillation* - **Ventricular fibrillation** can be a terminal event in drowning, often secondary to severe hypoxia and hypothermia, but it is usually not the initial or primary cause of death. - The cessation of breathing and subsequent lack of oxygen directly lead to organ failure, including cardiac dysrhythmias, rather than ventricular fibrillation being the independent initial event.

Question 1

What is the most reliable method to determine the time of death within the first 24 hours after death?

Accepted Answer

Algor mortis using rectal temperature with standard nomograms

Answer

Livor mortis is fixed and cannot be displaced after 8-12 hours

Answer

Rigor mortis appears first in smaller muscles and progresses to larger muscles

Answer

Putrefaction begins immediately after death in all environmental conditions

Question 2

Cognizable offence comes under which section of CrPC? (NEET 13)

Accepted Answer

2 (c)

Answer

1 (a)

Answer

2 (b)

Answer

2 (1)

Question 3

Police inquest is most straightforward in:

Accepted Answer

Suicidal death

Answer

Death by animals

Answer

Homicidal death

Answer

Dowry death

Question 4

Datura poisoning is characterized by:

Accepted Answer

Dilated pupil

Answer

Pinpoint pupil

Answer

Dilated salivary gland

Answer

Decreased temperature

Question 5

An incised-looking laceration is seen in all except:

Accepted Answer

Chest

Answer

Shin

Answer

Zygomatic bone

Answer

Iliac crest

Question 6

Causing miscarriage is punishable under which IPC:

Accepted Answer

Sec 312 IPC

Answer

Sec 320 IPC

Answer

Sec 311 IPC

Answer

Sec 314 IPC

Question 7

DNA fingerprinting can be done with all, except:

Accepted Answer

RBC

Answer

Saliva

Answer

WBC

Answer

Spermatozoa

Question 8

Medical etiquette is related to:

Accepted Answer

Courtesy observed between doctors

Answer

Legal obligations of doctors

Answer

Professional guidelines for doctors

Answer

Ethical principles guiding doctors

Question 9

Foamy liver is seen in:

Accepted Answer

Putrefaction

Answer

Arsenic poisoning

Answer

Electrocution

Answer

Hanging

Question 10

Cause of death for drowning in cold water:

Accepted Answer

Inability to breathe (asphyxia)

Answer

Loss of consciousness due to hypoxia

Answer

Cardiac arrest due to vagal inhibition

Answer

Cardiac arrest due to ventricular fibrillation

NEET-PG 2013 — Forensic Medicine