Aldridge-Mee's lines are characteristic of poisoning by which toxin?

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Prepare for the Toxicology E3R Exam with interactive quizzes. Test your knowledge with multiple choice questions, each complete with explanations to ensure understanding. Enhance your readiness and excel on your exam!

Multiple Choice

Aldridge-Mee's lines are characteristic of poisoning by which toxin?

Explanation:
Transverse white lines across the nails, known as Aldridge-Mee's (Mees') lines, point to arsenic poisoning. These lines form when arsenic disrupts the nail matrix as nails grow, so a line appears at a location corresponding to the time of exposure and then moves outward with growth. This nail sign is classically associated with arsenic exposure, making it the best cue among the options. Lead poisoning tends to produce Burtonian lines on the gums rather than nail lines, while cyanide and mercury have different characteristic signs and do not present this way.

Transverse white lines across the nails, known as Aldridge-Mee's (Mees') lines, point to arsenic poisoning. These lines form when arsenic disrupts the nail matrix as nails grow, so a line appears at a location corresponding to the time of exposure and then moves outward with growth. This nail sign is classically associated with arsenic exposure, making it the best cue among the options. Lead poisoning tends to produce Burtonian lines on the gums rather than nail lines, while cyanide and mercury have different characteristic signs and do not present this way.

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