My husband is 61 and has PKD. What causes his potassium to keep dropping?

In most instances, a low serum potassium is either inadequate intake of potassium or he is taking a medication that is causing the kidneys to waste potassium.  Diuretics and laxatives can cause low potassium.  Polycystic kidney disease (PCKD) is not commonly associated with a low potassium.  There are some kidney diseases that can cause low potassium, but PCKD is not a common one to do so.

 

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