Question:
Bluish discoloration of the gastric mucosa is seen in poisoning with which substance?
Bluish discoloration of the gastric mucosa is seen in poisoning with which substance?
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Recall the autopsy color chart: blue mucosa points to copper sulfate or amytal capsules.
Updated On: Jun 24, 2026
- Mercury
- Cadmium
- Amytal sodium (amobarbital)
- Arsenic
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The Correct Option is C
Solution and Explanation
Step 1: Recall the color clues of corrosive and capsule poisons at autopsy. The gastric mucosa color often points to the agent.
Step 2: Match blue. A blue discoloration is classically seen with copper sulfate and with the dye in amytal (amobarbital) capsules.
Step 3: Conclude. Among the options, amytal sodium produces the bluish staining, so option C is correct.
Step 4: Exclude distractors. Mercury gives a slate-grey color, arsenic leaves white particles, and these do not produce the blue mucosa, so they are wrong.
Step 2: Match blue. A blue discoloration is classically seen with copper sulfate and with the dye in amytal (amobarbital) capsules.
Step 3: Conclude. Among the options, amytal sodium produces the bluish staining, so option C is correct.
Step 4: Exclude distractors. Mercury gives a slate-grey color, arsenic leaves white particles, and these do not produce the blue mucosa, so they are wrong.
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