Nephrology MCQs-13


Most common cause of hypokalemia


A. Upper G.I potassium loss

B. Lower G.I. potassium loss

C. Renal potassium loss

D. Post operative potassium loss



Most common cause of hypokalemia


A. Drugs

B. Endogenous hormone production

C. Intrinsic renal defects

D. Fistula



Cisplatin induce hypokalemia is predominantly from


A. Renal potassium wasting

B. Increase distal tubular delivery of a nonreabsorbable anion

C. Increases collecting duct potassium secretion

D. Magnesium depletion



Piperacillin induced hypokalemia is predominantly due to


A. Renal potassium wasting

B. Increase distal tubular delivery of a nonreabsorbable anion

C. Increases collecting duct potassium secretion

D. Magnesium depletion



Amphotericin B induced hypokalemia is predominantly due to


A. Renal potassium wasting

B. Increase distal tubular delivery of a nonreabsorbable anion

C. Increases collecting duct potassium secretion

D. Magnesium depletion



Aldosterone predominantly causes hypokalemia by stimulating cellular potassium uptake.


A. Renal potassium wasting

B. Stimulating cellular potassium uptake

C. Increases collecting duct potassium secretion

D. Magnesium depletion



K+ is reabsorbed mainly in


A. Proximal tubule

B. Distal tubule

C. Collecting Duct

D. Glomerulus



Increased Urinary Potassium LevelsDecreased Urinary Potassium Levels
1Diuretic therapy.Amiloride
2Cortisone therapy.I/V glucose infusion.
3Thiazides.Dehydration
4Chronic renal failure.Malnutrition
5Starvation.Malabsorption
6Hyperaldosteronism.Addison disease
7Excessive intake of licorice.Vomiting
8Renal tubular acidosis.Acute renal failure where urinary K will be low but the patient will have hyperkalemia.
9Cushing’s syndrome.Diarrhea
10Alkalosis.
11Drugs like penicillin and carbenicillin
Urinary Potassium Levels


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Decreased Urinary Potassium Level Is Seen In:
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