Electrolyte Repletion

Potassium 

  - ref range 3.5-4.5

  - if acute MI, cardiac conditions >4.5 if VT

Magnesium

 • ref range 1.3-1.7

 • >2 if CAD or active cardiac conditions >2.5 for VT

Calcium

 • ref range 8-10

 • No need to replete unless corrected Ca <7

Phosphate 

 • ref range 2.5-4.5

 • Pay attention to K load with different formulations



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