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colleen colleen
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10 years ago
Why do patients taking loop diuretics need to take supplemental potassium?
A) They cause active secretion of potassium in the loop of Henle.
B) They inhibit the reabsorption of potassium as well as sodium in the loop of Henle.
C) They inhibit intestinal absorption of potassium.
D) They cause active reabsorption of potassium in the distal convoluted tubule.
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lemonxsojulemonxsoju
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10 years ago
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9 years ago
Quote from: lemonxsoju (10 years ago)
I believe the answer is B

In the ascending limb of the loop of Henle, there exists a Na+/K+/2Cl- cotransporter. This cotransporter takes sodium and potassium back up out of the urine and secretes chloride into it. Loop diuretics block this cotransporter.
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