Low magnesium leads to potassium wasting

This is one of those clinical pearls that you often get told on the wards – often by the cardiac nurses. ‘You’ve got to replace the magnesium as well as the potassium, otherwise the potassium won’t go up’. But why?

This article from JASN in 2007 gives a nice description of the process. Have a read of this popular little review over here.

source | JASN

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