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?
- A)Type 4 renal tubular acidosisGABARITO
- B)Gitelman syndrome
- C)Type 2 renal tubular acidosis
- D)Type 1 renal tubular acidosis
- E)Bartter syndrome
Explicação
Type 4 renal tubular acidosis is correct. Hypoaldosteronism or aldosterone resistance reduces distal sodium reabsorption and potassium and hydrogen secretion, producing hyperkalemia and a normal anion gap metabolic acidosis. Diabetic hyporeninemic hypoaldoster... Ver explicação completa e trilha adaptativa →