Free Set
Question
First sign of MgSO4 toxicity lost?
Options
APatellar reflex Correct Answer
BRespiratory rate
CUrine output
DPupillary reflex
Correct Answer & Explanation
Option A: Patellar reflex
Rationale
Loss of deep tendon reflexes, patellar reflex first at >7 mEq/L. Respiratory depression >10 and cardiac arrest >12.
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