Saturday, May 5, 2012

Hypocalcemia

If there's low calcium:
check albumin- drop in albumin by 1 drops Ca by 0.8, so calculate the real Ca level first if albumin is low.

If corrected calcium is still low then look for the cause:
  • Low PTH
  • Renal failure- low Vit D
  • Hypomagnesemia -Mg needed for PTH function
  • Low Vit D absorption


Note: if PO4 is low, PTH must be high (PTH causes excretion of PO4).

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