NEET-PG 2014 - Forensic Medicine Practice Questions

Q: Mees's lines are characteristic of:

Arsenic poisoning. ***Arsenic poisoning*** - **Mees's lines** are characteristic transverse white bands that appear on the fingernails and toenails, strongly indicative of **arsenic poisoning**. - These lines result from a temporary disruption of nail matrix growth, which occurs during systemic illness or exposure to toxins like arsenic. *Lead poisoning* - **Lead poisoning** is typically associated with **Burton's line** (a blue line on the gums) and neurological symptoms like **foot drop** or **wrist drop**, not Mees's lines. - Other common signs include **abdominal pain** and **anemia**. *Copper poisoning* - **Copper poisoning** can cause **hepatolenticular degeneration** (Wilson's disease if genetic), leading to **Kayser-Fleischer rings** in the eyes, but not Mees's lines. - Acute copper toxicity might present with **nausea, vomiting**, and **diarrhea**. *Mercury poisoning* - **Mercury poisoning** (e.g., Minamata disease) is known for neurological symptoms such as **tremors**, **ataxia**, and **gingivitis**, commonly referred to as **"mad hatter" syndrome**. - It does not specifically manifest **Mees's lines** on the nails.

Q: Preauricular sulcus is useful for determination of:

Sex. ***Sex*** - The **preauricular sulcus**, also known as the sulcus preauricularis, is a groove found on the ilium near the sacroiliac joint. - This feature is generally more pronounced and frequently present in **females**, particularly those who have given birth, making it a useful indicator for **sex determination** in skeletal remains. *Stature* - **Stature estimation** typically involves measuring the lengths of long bones (e.g., femur, tibia, humerus) and applying population-specific regression formulas. - The preauricular sulcus is a morphological feature of the pelvic bone and does not directly correlate with an individual's overall height. *Age* - **Age estimation** in adults often relies on degenerative changes in joints, sternal rib ends, pubic symphysis morphology, or dental wear. - While the presence of a preauricular sulcus is more common in females and can be associated with childbearing, it is not a primary or reliable indicator for estimating an individual's chronological age. *Race* - **Racial (ancestral) determination** in forensic anthropology is primarily based on craniofacial features, such as nasal aperture shape, orbital morphology, and facial prognathism. - The preauricular sulcus is not recognized as a distinguishing characteristic for differentiating between various ancestral groups.

Q: Differences between postmortem staining and contusion are all, except:

Bluish in color. ***Bluish in color*** - Both **postmortem staining (livor mortis)** and **contusions (bruises)** can appear bluish. Therefore, color alone is **not a reliable differentiating factor**. - Livor mortis results from the settling of blood in capillaries, while contusions are caused by the extravasation of blood into tissues due to trauma. *Margins are regular* - **Postmortem staining** typically has **regular, ill-defined margins** that conform to the areas where blood has settled due to gravity. - **Contusions** often have **irregular, well-defined margins** that reflect the shape and force of the impact. *Disappear on pressure* - **Postmortem staining** refers to **livor mortis**, which typically **blanches (disappears) on pressure** during the early stages (up to 8-12 hours post-mortem) as blood is pushed out of the capillaries. - **Contusions** involve extravasated blood in the tissues and **do not blanch on pressure**. *Extravasation is found* - **Extravasation of blood** into the surrounding tissues is a hallmark feature of a **contusion**, indicating a traumatic injury. - In **postmortem staining (livor mortis)**, blood remains within the capillaries and does not extravasate into the tissues; it merely pools due to gravity.

Q: Professional death sentence is given by:

National Medical Commission. ***National Medical Commission*** - A "professional death sentence" refers to the **permanent revocation of a medical license**, which prevents a doctor from practicing medicine. - The **National Medical Commission (NMC)**, established under the NMC Act 2019, is the **apex regulatory body** for medical practice in India with ultimate authority over disciplinary matters. - Under **Section 30 of the NMC Act**, the NMC has the power to impose penalties including **permanent removal from the medical register**, which constitutes the professional death sentence. - While State Medical Councils conduct investigations and initial disciplinary proceedings, the **NMC has appellate and final jurisdiction** over license revocation. *State Medical Council* - State Medical Councils register practitioners and handle primary disciplinary actions within their respective states. - They conduct initial investigations and can impose temporary suspensions or penalties. - However, they do **not have the ultimate authority** to permanently revoke licenses; such decisions fall under the NMC's appellate jurisdiction. *Central Health Ministry* - The **Central Health Ministry** formulates national health policies and oversees healthcare planning and funding. - It does not directly regulate individual medical practitioners or have authority to revoke medical licenses. - Its role is administrative and policy-oriented, not disciplinary. *Indian Medical Association* - The **IMA** is a voluntary professional body and advocacy organization for doctors. - It promotes ethical practices and represents doctors' interests but has **no legal authority** to grant or revoke medical licenses. - It is not a regulatory body under Indian law.

Q: Among the following countries, the first systematic fingerprint identification service was established in:

India. ***India*** - The **first systematic fingerprint identification service** was established in **Calcutta (now Kolkata), India in 1897** by Sir Edward Henry while he was Inspector General of Police in Bengal. - Henry developed the **Henry Classification System** in India, which became the standard fingerprint classification method worldwide. - This preceded the establishment of similar services in other countries, making it the first organized, systematic fingerprint bureau for criminal identification. *England* - England established its fingerprint bureau at **Scotland Yard in 1901**, four years after India. - Sir Edward Henry, who had developed the system in India, became Commissioner of the Metropolitan Police and established the Fingerprint Branch in London. - While England popularized fingerprint identification globally, it was not the first to establish a systematic service. *China* - **Ancient China** has historical evidence of using fingerprints on documents and clay seals for identification purposes dating back thousands of years. - However, this was not a systematic, scientific service for criminal identification in the modern sense with a classification system and organized bureau. *Singapore* - Singapore's forensic services, including fingerprint identification, developed later in the 20th century. - It followed the advancements pioneered by India and England and was not among the first countries to establish such services.

Q: During autopsy for virology study which agent is used for storing tissue:

50% glycerine. ***50% glycerine*** - **Glycerine** is commonly used for preserving tissues for virological studies because it helps to maintain viral viability by preventing **desiccation** and **denaturation** of viral particles. - It acts as a **cryoprotectant**, stabilizing cell membranes and protein structures, which is crucial for subsequent **viral isolation** and detection. *Alcohol* - **Alcohol** acts as a **fixative** by denaturing proteins and dehydrating tissues, which would inactivate most viruses and make them unsuitable for viability studies. - While useful for histopathology, it is not appropriate for preserving viral infectivity or integrity. *Rectified spirit* - **Rectified spirit** is a highly concentrated form of alcohol (typically 95% ethanol), and like alcohol, it causes **protein denaturation** and **dehydration**. - This property makes it unsuitable for preserving viral viability for subsequent virological studies. *Sodium chloride* - **Sodium chloride** alone in isotonic solutions can maintain tissue hydration but does not provide adequate **viral stabilization** or protection against degradation. - It would not prevent **enzymatic degradation** or maintain viral infectivity over time, especially at room temperature.

Q: In forensic toxicology practice, capsicum seeds are most likely to be confused with:

Dhatura. ***Dhatura*** - The seeds of both **capsicum** (chili pepper) and **Dhatura (Datura)** species are small, kidney-shaped, and often light brown to black, making them visually similar. - This resemblance poses a significant challenge in forensic investigations, especially in cases of suspected poisoning where plant material analysis is crucial. *Ricinus* - **Ricinus communis** (castor bean) seeds are typically larger, oval, and distinctly mottled with a glossy, hard coat, which differs significantly from the appearance of capsicum seeds. - The seeds also contain a prominent **caruncle** at one end, a feature absent in capsicum seeds. *Opium* - Opium itself is the dried latex from the **poppy capsule**, not a seed; **poppy seeds** are the seeds of the same plant (*Papaver somniferum*) but do not contain significant opium alkaloids. - Poppy seeds are very small, kidney-shaped, and typically dark blue-grey to black, which may show some resemblance to certain capsicum seed varieties. - However, poppy seeds are generally much smaller and have a characteristic dark color, which can differentiate them from the more varied colors of capsicum seeds. *Strychnine* - **Strychnine** is an alkaloid, not a plant seed, and is typically encountered as a white crystalline powder or in tablet form. - While it is derived from the **Strychnos nux-vomica** tree, the actual seeds of this plant are disc-shaped, flat, and covered in fine, silky hairs, making them easily distinguishable from capsicum seeds.

Q: Under which section of the Indian Penal Code is sodomy addressed?

Section 377 IPC (Unnatural offenses). ***Section 377 IPC (Unnatural offenses)*** - This section of the Indian Penal Code specifically addressed **unnatural offenses**, which historically included **sodomy**. - Although parts of this section concerning consensual same-sex acts have been decriminalized, it still pertains to non-consensual sexual acts and bestiality. *Section 354 IPC (Assault on women)* - This section deals with **assault or criminal force to a woman with intent to outrage her modesty**. - It is specifically focused on offenses against women and does not cover the act of sodomy. *Section 378 IPC (Theft)* - This section defines the offense of **theft**, which involves dishonestly taking any movable property out of the possession of any person without that person's consent. - It is entirely unrelated to sexual offenses or sodomy. *Section 375 IPC (Rape)* - This section defines and outlines the punishment for **rape**, primarily focusing on non-consensual penile-vaginal penetration, though amendments have broadened its scope. - While a serious sexual offense, it is distinct from the specific acts historically covered under sodomy.

Q: In hypothermia, cause of death is:

Cardiac arrest. ***Cardiac arrest*** - In **hypothermia**, the heart becomes increasingly **irritable** with progressive cooling, especially below **28°C (severe hypothermia)** - **Ventricular fibrillation** is the most common terminal arrhythmia, followed by **asystole** - **Myocardial irritability** and **electrical instability** make cardiac arrest the **primary cause of death** in hypothermia - The J wave (Osborn wave) on ECG is characteristic but indicates high risk of fatal arrhythmias *Asphyxia* - While **respiratory depression** and **cold-induced pulmonary edema** occur in hypothermia, they are not the primary mechanism of death - **Cardiac arrest typically precedes** complete respiratory failure - Respiratory complications contribute but are not the immediate cause in most cases *Pulmonary embolism* - **Cold-induced coagulopathy** and **increased blood viscosity** can increase thrombotic risk - However, this is a **secondary complication** rather than the immediate cause of death in acute hypothermia - Less common than direct cardiac causes *Stroke* - **Cerebral hypoperfusion** and **coagulopathy** can theoretically increase stroke risk - **Rarely the direct cause** of death in hypothermia compared to cardiac arrhythmias - More of a theoretical risk than a common terminal event

Q: Accidental choking of respiratory passage by bolus of food:

Cafe coronary. ***Cafe coronary*** - This term refers to **sudden collapse and death** that occurs during a meal, often mistaken for a heart attack, but is actually caused by **choking on a large piece of food** that obstructs the airway. - The obstruction leads to **asphyxiation** due to the bolus of food blocking the respiratory passage. *Aspiration* - **Aspiration** is the inhalation of food, liquid, or stomach contents into the lungs, which can lead to **pneumonia** or other respiratory complications. - While choking involves food entering the respiratory passage, aspiration more specifically refers to the **entry of foreign material into the lower respiratory tract**, not necessarily a complete obstruction causing immediate collapse. *Gagging* - **Gagging** is a reflex action triggered by touching the back of the throat, designed to prevent foreign objects from entering the throat. - It is a **protective mechanism** against choking rather than the choking event itself, and doesn't describe the accidental bolus obstruction. *Laryngospasm* - **Laryngospasm** is an involuntary spasm of the vocal cords that temporarily closes the airway, often triggered by irritation or an anesthetic. - While it results in airway obstruction, it is a **muscular contraction** of the larynx, not the physical blockage by a food bolus.

Question 1

Mees's lines are characteristic of:

Accepted Answer

Arsenic poisoning

Answer

Lead poisoning

Answer

Copper poisoning

Answer

Mercury poisoning

Question 2

Preauricular sulcus is useful for determination of:

Accepted Answer

Sex

Answer

Stature

Answer

Age

Answer

Race

Question 3

Differences between postmortem staining and contusion are all, except:

Accepted Answer

Bluish in color

Answer

Margins are regular

Answer

Disappear on pressure

Answer

Extravasation is found

Question 4

Professional death sentence is given by:

Accepted Answer

National Medical Commission

Answer

Central Health Ministry

Answer

Indian Medical Association

Answer

State Medical Council

Question 5

Among the following countries, the first systematic fingerprint identification service was established in:

Accepted Answer

India

Answer

England

Answer

China

Answer

Singapore

Question 6

During autopsy for virology study which agent is used for storing tissue:

Accepted Answer

50% glycerine

Answer

Alcohol

Answer

Rectified spirit

Answer

Sodium chloride

Question 7

In forensic toxicology practice, capsicum seeds are most likely to be confused with:

Accepted Answer

Dhatura

Answer

Ricinus

Answer

Opium

Answer

Strychnine

Question 8

Under which section of the Indian Penal Code is sodomy addressed?

Accepted Answer

Section 377 IPC (Unnatural offenses)

Answer

Section 354 IPC (Assault on women)

Answer

Section 378 IPC (Theft)

Answer

Section 375 IPC (Rape)

Question 9

In hypothermia, cause of death is:

Accepted Answer

Cardiac arrest

Answer

Asphyxia

Answer

Pulmonary embolism

Answer

Stroke

Question 10

Accidental choking of respiratory passage by bolus of food:

Accepted Answer

Cafe coronary

Answer

Aspiration

Answer

Gagging

Answer

Laryngospasm

NEET-PG 2014 — Forensic Medicine