Guest guest Posted December 30, 2009 Report Share Posted December 30, 2009 Do I need to stop taking my over-the-counter potassium for any length of time before getting an RBC potassium test? If yes, for how long? Is there anything else I should to to prepare for this test (stop taking magnesium or sodium)? Thank you very much. Quote Link to comment Share on other sites More sharing options...
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