A patient who is hospitalized with a possible electrolyte imbalance is disoriented and weak, has an irregular pulse, and takes hydrochlorothiazide. He most likely suffers from:
A) Hypernatremia
B) Hyponatremia
C) Hyperkalemia
D) Hypokalemia
Ans: D
Feedback: The symptoms of hypokalemia include GI, cardiac, renal, respiratory, and neurologic disturbances. The use of potassium-wasting diuretics, such as hydrochlorothiazide, without potassium replacement therapy is a primary cause of hypokalemia.
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