Medical MCQ - A 30-year-old woman is having symptoms of muscle weakness and fatigue. On examination, her blood pressure is 120/80 mm Hg, pulse 80/min, JVP 4 cm, heart sounds normal, and lungs clear. Her serum potassium level is 2.5 mEq/L, and bicarbonate 30 mEq/L. The urine potassium is 10 mEq/L.For the above patient with hypokalemia, select the most likely diagnosis.

A 30-year-old woman is having symptoms of muscle weakness and fatigue. On examination, her blood pressure is 120/80 mm Hg, pulse 80/min, JVP 4 cm, heart sounds normal, and lungs clear. Her serum potassium level is 2.5 mEq/L, and bicarbonate 30 mEq/L. The urine potassium is 10 mEq/L.For the above patient with hypokalemia, select the most likely diagnosis.

lower gastrointestinal (GI) losses

prior use of diuretics

RTA

current use of diuretics

Question Category:

Medicine

Correct Answer:

prior use of diuretics

Description:

In patients who have prior diuretic use, resulting in hypokalemia at the time of evaluation, the bicarbonate tends to be elevated and the urine potassium low (< 25 mmol/F).

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