Pearls on Intensive Care Medicine Practice - Project "Critical Care A Day"
Tuesday, February 4, 2014
A note on Magnesium level and Hemolysis
Magnesium concentrates in erythrocytes almost three
times more than in serum. Hemolysis can increase plasma magnesium.
Hypermagnesemia is expected only in massive hemolysis. The serum Mg is expected
to rise by 0.1 mEq/L for every 250 mL of erythrocytes that lyse completely, so
hypermagnesemia is expected only with massive hemolysis.