Which of the following is not a symptom that would occur in the event of a phenytoin overdose?

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Multiple Choice

Which of the following is not a symptom that would occur in the event of a phenytoin overdose?

Explanation:
Phenytoin overdose mainly causes central nervous system depression from excessive sodium channel blockade, so it typically presents with neurologic signs such as drowsiness, ataxia, and nystagmus as the drug disrupts cerebellar and brainstem function. Hypoglycemia is not a feature of phenytoin toxicity; it’s a metabolic disturbance and does not arise from phenytoin’s CNS depressant effects. Therefore, hypoglycemia would not be expected with phenytoin overdose, while the other signs fit the toxicity pattern.

Phenytoin overdose mainly causes central nervous system depression from excessive sodium channel blockade, so it typically presents with neurologic signs such as drowsiness, ataxia, and nystagmus as the drug disrupts cerebellar and brainstem function. Hypoglycemia is not a feature of phenytoin toxicity; it’s a metabolic disturbance and does not arise from phenytoin’s CNS depressant effects. Therefore, hypoglycemia would not be expected with phenytoin overdose, while the other signs fit the toxicity pattern.

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