What is most common cause of hypocalcemia?

Updated: Aug 08, 2019
  • Author: Manish Suneja, MD, FASN, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Hypoalbuminemia is the most common cause of hypocalcemia. Causes include cirrhosis, nephrosis, malnutrition, burns, chronic illness, and sepsis. In patients who are critically ill, low calcium levels can be simply due to hypoalbuminemia, which has no clinical significance because the active fraction (ionized) is not affected. However, to prevent missing a second hypocalcemic disorder, measure the ionized calcium level whenever the albumin level is low.


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