Organophosphate Toxicity · Pharmacology

Which laboratory finding supports the diagnosis of organophosphate poisoning?

  1. Markedly elevated serum creatinine and BUN
  2. Reduced plasma cholinesterase activity
  3. Increased hemoglobin
  4. Elevated bilirubin
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Correct answer: Reduced plasma cholinesterase activity

Organophosphates inhibit cholinesterase enzymes. Decreased plasma cholinesterase levels indicate exposure and severity.

Difficulty: Medium Question 9 of 20

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