Forensic Medicine Practice

20 learning units • 10 questions per unit • 200 explained questions

Module 17 — Corrosives, Toxic Gases & Hydrocarbons

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Question 01 • Single best answer

Why can a mild oral appearance be misleading after corrosive ingestion?

A. The mouth always shows the full injury extent B. A normal mouth proves no ingestion C. Oral color determines the exact agent D. Deeper gastrointestinal injury may not match visible oral findings

Question 02 • Single best answer

Why should home neutralization of an ingested corrosive be avoided?

A. It may worsen injury through heat, repeat exposure or aspiration B. It always prevents every burn C. It replaces specialist evaluation D. It guarantees a nontoxic final product

Question 03 • Single best answer

Which systemic problem is associated with oxalic acid poisoning?

A. Guaranteed isolated hyperglycemia only B. Permanent elevation of every hormone C. An exclusively superficial skin effect D. Hypocalcemia and renal injury

Question 04 • Single best answer

Why may pain underestimate phenol exposure severity?

A. Phenol cannot damage tissue B. Only painful lesions are toxic C. Local anesthetic effects can obscure injury D. Phenol is not absorbed through skin

Question 05 • Single best answer

Which test is particularly useful for confirming carbon monoxide exposure?

A. A conventional pulse-oximeter reading alone B. Serum calcium alone C. Carboxyhemoglobin measurement by co-oximetry D. A visual test of skin color alone

Question 06 • Single best answer

Why must time and oxygen treatment be considered when interpreting carboxyhemoglobin?

A. Oxygen has no effect on elimination B. Levels can decline after exposure ends and treatment begins C. Every sample represents the peak concentration D. A low later level proves there was no earlier exposure

Question 07 • Single best answer

What is a central toxic action of cyanide?

A. Exclusive inhibition of platelet ADP receptors B. Replacement of vitamin B12 in every tissue C. Impaired cellular oxygen utilization D. Selective neutralization of gastric acid

Question 08 • Single best answer

Should emergency treatment of strongly suspected severe cyanide toxicity always wait for a confirmatory level?

A. Yes; supportive care must also wait B. No; clinical urgency and exposure context may require immediate treatment C. Yes; the level always returns instantly D. No; because analytical tests are never useful

Question 09 • Single best answer

What is a major hazard after aspiration of some hydrocarbons?

A. A required immediate fracture B. Chemical pneumonitis C. Isolated tooth discoloration only D. Guaranteed absence of respiratory injury

Question 10 • Single best answer

A suspected poison container is found near a body. What does that alone establish?

A. A contextual clue requiring investigation B. Definitive proof that the contents caused death C. The exact absorbed exposure D. The person's intent beyond uncertainty