Neonatology textbooks define neonatal hypocalcemia (NHC) as a serum total calcium (Ca) concentration of <7.0 to <8.0 mg/dl, or a serum ionized Ca (iCa) concentration of <2.5 to 4.0 mg/dl. Studies ...
Normal serum ionized calcium levels are crucial to many aspects of physiologic stability. Disturbances in ionized calcium are known to occur frequently in critically ill adults, and to be poorly ...