Review Note

Last Update: 12/20/2024 07:50 PM

Current Deck: Geneeskunde::3e bachelor::Nier en spijs::ZSO 11+12: Water- en natriumbalans

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Question

A person consumes a high-K+ diet, which temporarily elevates their serum potassium level. What is the primary mechanism by which the kidney will restore potassium balance in this individual?

Title

QType (0=kprim,1=mc,2=sc)

Q_1

Stimulating K secretion in the loop of Henle

Q_2

Inhibiting potassium reabsorption in the proximal tubule

Q_3

Inhibiting K reabsorption in the inner medullary collecting duct

Q_4

Stimulating K secretion in the cortical collecting duct

Q_5

Answers

0 0 0 1

Sources

Extra 1

Rationale: In response to an increase in dietary K+ intake, the cortical collecting duct principal cells increase the rate of K+ secretion, accounting for most of the K+ excreted in the urine. Potassium can be secreted or reabsorbed by segments of the nephron before the distal tubule, but this process is not regulated. Potassium is primarily reabsorbed in the distal nephron, but the rate of reabsorption is constant and not regulated.

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