McGraw was born in Vinita, Oklahoma, the son of Anne Geraldine Jerry (nee NÃ©e) stevens And Joseph. J McGraw, Mcgraw. Jr he grew up with two older, Sisters deana And, donna and younger Sister brenda in the oilfields Of North texas where his father was an equipment. supplier
Definition. Hypocalcemia, a low bood calcium level, occurs when the concentration of free calcium ions in the blood falls below 4.0 mg/dL (dL = one tenth of a liter). The normal concentration of free calcium ions in the blood serum is 4.0-6.0 mg/dL.
Hypocalcemia varies from an asymptomatic biochemical abnormality to a life-threatening disorder, depending on the duration, severity, and rapidity of development. Hypocalcemia is caused by loss of calcium from or insufficient entry of calcium into the circulation (Table 1). Hypoparathyroidism is the most common cause of hypocalcemia and often develops because of surgery in the central neck requiring radical resection of head and neck cancers.