For pregnant patients treated with magnesium, one indication of too much magnesium is deep tendon reflexes that are hyporeflexive, or significantly less brisk than normal.

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Magnesium sulfate is used in pregnancy for conditions like preeclampsia and can lead to magnesium toxicity. One of the signs of magnesium toxicity is hyporeflexia, where deep tendon reflexes are less brisk than normal due to the depressant effect of magnesium on the neuromuscular junction.

For Pregnant Patients Treated with Magnesium, One Indication of Too