Question

the nurse who is caring for a client with severe malnutrition reviews the laboratory results and notes that the client has a magnesium level of 1.0 meq/l (0.5 mmol/l). which electrocardiographic change would the nurse expect to observe based on the clients magnesium level? answer options 1 prominent u waves 2 prolonged pr interval 3 depressed st segment 4 widened qrs complexes

Explanation:

Magnesium level of 1.0 mEq/L (0.5 mmol/L) indicates hypomagnesemia. Hypomagnesemia is associated with prolonged PR interval. Prominent U waves are seen in hypokalemia. Depressed ST segment can be seen in hypokalemia or hypocalcemia. Widened QRS complexes are associated with hyperkalemia or sodium channel blocker toxicity.

Answer:

1. Prolonged PR interval