UPSC-CMS 2025 - Forensic Medicine PYQs Practice Questions

Q: Which one of the following is the correct description of Mee's lines, seen in chronic arsenic poisoning?

Transverse white lines on nails of fingers and toes. ***Transverse white lines on nails of fingers and toes*** - **Mee's lines** are characteristic **white transverse bands** seen specifically on the **nails** of the fingers and toes. - They are typically associated with **arsenic poisoning** but can also be seen in other systemic illnesses. *Transverse white lines on the skin of palms and soles* - While chronic arsenic poisoning can cause **skin pigmentation changes** (melanosis) and **hyperkeratosis** on the palms and soles, it does not typically manifest as distinct white transverse lines on the skin. - Mee's lines are exclusively a **nail finding**. *Transverse red lines on the nails of fingers and toes* - **Red lines on nails** are not characteristic of Mee's lines; Mee's lines are described as **white**. - Red nail changes, such as splinter hemorrhages, are often associated with other conditions, like **endocarditis**. *Transverse red lines on the skin of palms and soles* - This description does not correspond to Mee's lines, which are **white nail changes**, nor is it a typical manifestation of chronic arsenic poisoning on the skin in this specific pattern. - Skin manifestations of arsenic poisoning on palms and soles are usually **hyperpigmentation** and **hyperkeratosis**. [Practice more Forensic Medicine PYQs on OnCourse]

Q: Which one of the following prevents gastrointestinal absorption of thallium?

Prussian blue. ***Prussian blue*** - **Prussian blue** (ferric hexacyanoferrate) acts as an ion exchanger in the gastrointestinal tract, binding to thallium and preventing its absorption. - This complex of thallium and Prussian blue is then **excreted in the feces**, reducing systemic toxicity. *Calcium carbonate* - **Calcium carbonate** is an antacid primarily used to neutralize stomach acid or as a calcium supplement. - It does not specifically bind to or prevent the absorption of **thallium**. *Potassium permanganate* - **Potassium permanganate** is a strong oxidizing agent sometimes used for gastric lavage in certain poisonings. - It does not form a stable, non-absorbable complex with **thallium** to prevent its gastrointestinal uptake. *Penicillamine* - **Penicillamine** is a chelating agent used for heavy metal poisoning, such as copper (in Wilson's disease) or lead. - While it can chelate some metals, its primary mechanism involves forming soluble complexes that are excreted renally, rather than directly preventing **gastrointestinal absorption** of thallium. [Practice more Forensic Medicine PYQs on OnCourse]

Q: A radiopaque density may be noticed in poisoning by which of the following agents?

Chloral hydrate. ***Chloral hydrate*** - Due to its halogenated structure, **chloral hydrate** can be radio-opaque on X-rays, making it one of the "CHIPES" substances. - This property allows for radiological detection of its presence in the **gastrointestinal tract** following ingestion, particularly in large overdoses. *Chloroquine* - **Chloroquine** is not significantly radio-opaque and is generally not detectable on plain radiographs following overdose. - Clinical diagnosis of chloroquine poisoning relies on symptoms such as **hypotension**, **cardiac arrhythmias**, and **hypokalemia**, not radiological findings. *Phenazopyridine* - **Phenazopyridine** is a urinary analgesic that does not possess properties that render it radiographically detectable. - Its metabolism and excretion do not produce **radio-opaque metabolites** or complexes. *Ethylene glycol* - **Ethylene glycol** itself is not radio-opaque on plain X-rays, and its presence is typically diagnosed through laboratory tests like anion gap metabolic acidosis. - While it can lead to the formation of **calcium oxalate crystals** in the kidneys, these are typically microscopic and not visible as general radiopacities in the GI tract. [Practice more Forensic Medicine PYQs on OnCourse]

Q: As per POCSO (Protection of Children from Sexual Offences) Act 2012, sexual assault is considered aggravated when I. the abuse involves use of physical violence II. the abused child is disabled III. the abuse is committed by staff of an educational institution IV. the abuse is committed by an immediate family member/first degree relative Which of the above are correct?

II and III. **IMPORTANT NOTE:** According to POCSO Act 2012 Section 9, **ALL FOUR statements (I, II, III, and IV) are actually aggravating factors** for sexual assault. This question has a structural flaw as it lacks an "All of the above" option. ***II and III (Marked as answer, but incomplete)*** - **Disabled child (II)**: Section 9(a)(ii) explicitly includes when "the child is mentally ill or physically or mentally disabled" as an aggravating factor. - **Educational institution staff (III)**: Section 9(n) includes when committed by "a member of the management or staff of an educational institution." *However, statements I and IV are ALSO aggravating factors per POCSO Act 2012:* **Statement I - Physical Violence:** - Section 9(c) explicitly states aggravated sexual assault includes "when the child is subject to sexual assault by use of physical violence." **Statement IV - Immediate Family Member/Relative:** - Section 9(f) explicitly states aggravated sexual assault includes "when the sexual assault is committed by a person who is a relative of the child." **Legal Reference:** POCSO Act 2012, Section 9 lists 16 circumstances that constitute aggravated sexual assault, including all four factors mentioned in this question. *Note: This question requires review as the correct answer should be "All of the above" but this option is not available.* [Practice more Forensic Medicine PYQs on OnCourse]

Q: If faced with a surgical emergency in a child of 15 years for whom no consent is available for life-saving surgery and no time for seeking authority from someone, the next step should be :

Go ahead with surgery without consent. ***Go ahead with surgery without consent*** - In a **life-threatening emergency**, when a child's life is at stake and there is no time to obtain consent from parents or legal guardians, the **principle of implied consent** or necessity overrides the need for explicit consent. - The primary ethical and legal responsibility is to save the patient's life, and delaying surgery for consent could be considered **negligent** and harmful. *Conservative management till lawyer is available* - Delaying life-saving surgery in an emergency for legal consultation would be a breach of the **duty of care** and could result in the child's death. - The immediate priority in a surgical emergency is to provide the necessary medical intervention, not to seek legal advice on consent. *Consent arrangement through Hospital Social Worker* - While a hospital social worker can assist in locating family or arranging consent in non-emergent situations, the question specifies "no time for seeking authority from someone" and a "surgical emergency." - This option would still involve a delay that could be fatal in a life-saving scenario. *Search for relatives or neighbours* - This option directly contradicts the premise that there is "no time for seeking authority from someone" for life-saving surgery. - While efforts should be made to contact guardians, in a dire emergency, the **immediate medical intervention** takes precedence over searching for individuals who can provide consent. [Practice more Forensic Medicine PYQs on OnCourse]

Question 1

Which one of the following is the correct description of Mee's lines, seen in chronic arsenic poisoning?

Accepted Answer

Transverse white lines on nails of fingers and toes

Answer

Transverse white lines on the skin of palms and soles

Answer

Transverse red lines on the nails of fingers and toes

Answer

Transverse red lines on the skin of palms and soles

Question 2

Which one of the following prevents gastrointestinal absorption of thallium?

Accepted Answer

Prussian blue

Answer

Calcium carbonate

Answer

Potassium permanganate

Answer

Penicillamine

Question 3

A radiopaque density may be noticed in poisoning by which of the following agents?

Accepted Answer

Chloral hydrate

Answer

Chloroquine

Answer

Phenazopyridine

Answer

Ethylene glycol

Question 4

As per POCSO (Protection of Children from Sexual Offences) Act 2012, sexual assault is considered aggravated when
I. the abuse involves use of physical violence
II. the abused child is disabled
III. the abuse is committed by staff of an educational institution
IV. the abuse is committed by an immediate family member/first degree relative

Which of the above are correct?

Accepted Answer

II and III

Answer

I and III

Answer

II and IV

Answer

I and IV

Question 5

If faced with a surgical emergency in a child of 15 years for whom no consent is available for life-saving surgery and no time for seeking authority from someone, the next step should be :

Accepted Answer

Go ahead with surgery without consent

Answer

Conservative management till lawyer is available

Answer

Consent arrangement through Hospital Social Worker

Answer

Search for relatives or neighbours

Question 6

Which of the following information needs to be disclosed in order to establish valid consent for surgical treatment?
I. Condition and reasons why it warrants surgery
II. Type of surgery proposed
III. Unexpected hazards of proposed surgery
IV. The surgical experience and expertise of the operating surgeon

Select the correct answer using the code given below :

Accepted Answer

I, II and III

Answer

II, III and IV

Answer

I, II and IV

Answer

I, III and IV

UPSC-CMS 2025 — Forensic Medicine