Chronic Kidney Disease USMLE Step 1 Practice Question
A 64 year old man with long standing diabetes mellitus is evaluated for progressive weakness. Blood pressure is 148/88 mm Hg. Laboratory studies show potassium 6.0 mEq/L, bicarbonate 18 mEq/L, and a normal anion gap metabolic acidosis. Plasma renin and aldosterone levels are low. Which of the following is the most likely diagnosis?
Answer choices
- AType 4 renal tubular acidosisCorrect answer
- BGitelman syndrome
- CType 2 renal tubular acidosis
- DType 1 renal tubular acidosis
- EBartter syndrome
- FDistal renal tubular acidosis with hypoaldosteronism
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