F+E Highlights: Magnesium Imbalance ECG Changes
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Last updated 6:26 AM on 9/28/25
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4 Terms
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Magnesium deficit (hypomagnesemia) ECG changes?
PVCs, flat or inverted T waves, depressed ST segment, prolonged PR interval, and widened QRS
2
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Magnesium excess (hypermagnesemia) ECG Changes?
tachycardia → bradycardia, prolonged PR interval and QRS, peaked T waves
3
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Magnesium deficit (hypomagnesemia) S/S?
Neuromuscular irritability, positive Trousseau sign and Chvostek sign, insomnia, mood changes, anorexia, vomiting, increased tendon reflexes, and ↑ BP.
4
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Magnesium excess (hypermagnesemia) S/S?
Flushing, hypotension, muscle weakness, drowsiness, hypoactive reflexes, depressed respirations, cardiac arrest and coma, diaphoresis
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