Calcium is an essential cation required for many biological processes, including excitation-contraction coupling in muscles, hormonal secretion, neurotransmission, cell division, blood coagulation, and bone structure. It is also a major intracellular messenger, is needed for cellular processes that require movement, and is required by many enzymes for normal activity (Tohmeand BilezikiaD 1993). Deficiency of calcium is common in patients with critical illness. Total serum calcium concentrations are low in 70 to 90 per cent of intensive care unit (ICU) patients. However, the occurrence rate of ionized hypocalcemia varies from 15 to 50 per cent, depending on the type of patient treated.

Healthy Fat Loss For A Longer Life

Healthy Fat Loss For A Longer Life

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