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Old 09-11-2013
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Urine Sample Contraction alkalosis

1) why it causes hypOKalemia, hypOnatremia and hypOchloremia. it should not cause hypOnatremia but Uworld mentioned hypOnatremia also.
2) which diuretic cause contraction alkalosis.
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Old 09-11-2013
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Ans to 2)loop diuretics and thiazides can lead to contraction allalosis like this
... Loop diuretic use- loss of fluids from body-VOL CONTRACTION- so inc AT || release - acts on pct leading to preserve water so inc Na H exchange so Na and watr re absorbtion- hence inc bicarbonate and alkalosis

Regarding 1) I just read it don't knw exactly the cause.

Correct me if I'm wrong
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Acid-Base-, Electrolytes-, Pathology-, Pharmacology-, Physiology-, Renal-

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