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Biology-Related Homework Help Anatomy and Physiology Topic started by: colleen on Nov 17, 2013



Title: Why do patients taking loop diuretics need to take supplemental potassium?
Post by: colleen on Nov 17, 2013
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.


Title: Re: Why do patients taking loop diuretics need to take supplemental potassium?
Post by: lemonxsoju on Nov 23, 2013
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Title: Re: Why do patients taking loop diuretics need to take supplemental potassium?
Post by: suzy587423 on Jun 7, 2014
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.