Which question should the nurse ask during the admission history of a patient with hypomagnesemia?
A) "Do you use magnesium-containing laxatives?"
B) "How much alcohol do you drink?"
C) "Are you taking lithium?"
D) "Do you have renal failure?"
B) "How much alcohol do you drink?"
Explanation: A) Hypermagnesemia often results from renal failure and is more pronounced if magnesium-containing antacids are consumed. The use of laxatives may contribute to hypermagnesemia, as can increased dietary intake, diabetic ketoacidosis, lithium toxicity, burns, trauma, and shock. A common iatrogenic cause of hypermagnesemia is an overreplacement with supplements or overuse of magnesium-containing laxatives, which can be exacerbated in patients with renal failure.
B) The most common cause of hypomagnesemia is excessive alcohol intake. Hypomagnesemia in patients who abuse alcohol is typically due to malabsorption.
C) Hypermagnesemia often results from renal failure and is more pronounced if magnesium-containing antacids are consumed. The use of laxatives may contribute to hypermagnesemia, as can increased dietary intake, diabetic ketoacidosis, lithium toxicity, burns, trauma, and shock. A common iatrogenic cause of hypermagnesemia is an overreplacement with supplements or overuse of magnesium-containing laxatives, which can be exacerbated in patients with renal failure.
D) Hypermagnesemia often results from renal failure and is more pronounced if magnesium-containing antacids are consumed. The use of laxatives may contribute to hypermagnesemia, as can increased dietary intake, diabetic ketoacidosis, lithium toxicity, burns, trauma, and shock. A common iatrogenic cause of hypermagnesemia is an overreplacement with supplements or overuse of magnesium-containing laxatives, which can be exacerbated in patients with renal failure.
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