NEET-PG 2014 Practice Questions

Q: Rinne test is:

A tuning fork test for hearing assessment. ***A tuning fork test for hearing assessment*** - The **Rinne test** is a well-established otological examination that uses a **tuning fork** (typically 512 Hz) to compare **air conduction (AC)** and **bone conduction (BC)** hearing. - Normal result shows **air conduction > bone conduction** (positive Rinne test), while **conductive hearing loss** shows bone conduction > air conduction (negative Rinne test). *Not a recognized medical term* - This is completely false. The **Rinne test** is a widely recognized and standard medical diagnostic test in **otolaryngology** and **audiology**. - It has been used clinically for over a century and is taught in medical schools worldwide, named after **Heinrich Adolf Rinne**, a German otologist who described it in 1855. *A clinical examination technique for tympanic membrane* - While the Rinne test is part of ear examination, it does not directly examine the **tympanic membrane**. - The test assesses **hearing pathways** rather than directly visualizing or examining the tympanic membrane structure; direct examination is done through **otoscopy**. *A type of audiometry test* - **Audiometry** refers to formal, quantitative hearing tests using specialized electronic equipment that produce **audiograms** with detailed hearing threshold measurements. - The Rinne test is a simple, qualitative **bedside test** using a tuning fork that provides a quick comparison between air and bone conduction, but does not produce numerical thresholds or detailed audiometric data.

Q: Socrates was killed by which poison? (NEET 14)

Conium. ***Conium*** - **Socrates** was famously executed by being forced to drink a cup of **hemlock**, which is derived from the **poison hemlock plant**, *Conium maculatum*. - The active principle in **hemlock** that causes its toxic effects is **coniine**, a neurotoxic alkaloid that leads to ascending paralysis and respiratory failure. *Cyanide* - **Cyanide** is a rapid-acting poison that inhibits cellular respiration, leading to tissue hypoxia. - While a potent poison, it is not the substance historically documented as being used to execute **Socrates**. *Datura* - **Datura** species contain **tropane alkaloids** such as scopolamine and atropine, which cause anticholinergic effects like delirium, hallucinations, and tachycardia. - This plant's poison profile and historical evidence do not match the circumstances of **Socrates'** death. *Strychnine* - **Strychnine** is a highly toxic alkaloid that causes severe muscular spasms, convulsions, and ultimately respiratory arrest due to its action on glycine receptors in the spinal cord. - The symptoms associated with **Socrates'** death, primarily ascending paralysis, are not consistent with **strychnine** poisoning.

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.

Question 1

Rinne test is:

Accepted Answer

A tuning fork test for hearing assessment

Answer

A clinical examination technique for tympanic membrane

Answer

A type of audiometry test

Answer

Not a recognized medical term

Question 2

All of the following are features of somatic death, except:

Accepted Answer

Cessation of heart activity

Answer

Cessation of respiration

Answer

Non-responding muscles

Answer

No response to external stimuli

Question 3

Socrates was killed by which poison? (NEET 14)

Accepted Answer

Conium

Answer

Cyanide

Answer

Datura

Answer

Strychnine

Question 4

Mees's lines are characteristic of:

Accepted Answer

Arsenic poisoning

Answer

Lead poisoning

Answer

Copper poisoning

Answer

Mercury poisoning

Question 5

Preauricular sulcus is useful for determination of:

Accepted Answer

Sex

Answer

Stature

Answer

Age

Answer

Race

Question 6

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 7

Professional death sentence is given by:

Accepted Answer

National Medical Commission

Answer

Central Health Ministry

Answer

Indian Medical Association

Answer

State Medical Council

Question 8

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

Accepted Answer

India

Answer

England

Answer

China

Answer

Singapore

Question 9

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 10

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

Accepted Answer

Dhatura

Answer

Ricinus

Answer

Opium

Answer

Strychnine

NEET-PG 2014

ENT

Forensic Medicine