Introduction

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.

Sleep Apnea

Sleep Apnea

Have You Been Told Over And Over Again That You Snore A Lot, But You Choose To Ignore It? Have you been experiencing lack of sleep at night and find yourself waking up in the wee hours of the morning to find yourself gasping for air?

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