1.5 - 2.5 mEq/L
HYPOmagnesemia is low total body magnesium in the ECF caused by nasogastric suction, diarrhea, ETOH withdrawal, tube feedings/ parenteral nutrition, sepsis, burns. Muscle weakness, tremors, tetany (invol muscle contraction), seizurs, heart block, chg in mental status, hyperactive DTR (deep tendon reflex), respiratory paralysis.
HYPERmagnesemia is high total body magnesium caused by renal failure, excessive Mg intake due to antacids or laxatives. Nausea, vomiting, weakness, flushing, lethargy, loss of DTR (deep tendon reflex), respiratory deprssion, coma, cardiac arrest.