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research-article |
Serum Calcium, Magnesium, Inorganic Phosphate and Alkaline Phosphatase in Ghanaian Children at the Age of Puberty
Department of Chemical Pathology, University of Ghana Medical School Accra, Ghana
Serum calcium, magnesium, inorganic phosphate and alkaline phosphatase were estimated in 22 healthy boys and 25 healthy girls aged 1115 years to determine if these biochemical tests could explain the raised serum alkaline phosphatase activity found in apparently healthy children at the age of puberty. Two boys and a girl had serum alkaline phosphatase activities above 30 King-Armstrong units/100 ml; the highest result was approximately 40 King-Armstrong units. The serum concentrations of calcium, magnesium and inorganic phosphate of the three children were, however, normal. Their liver function tests were also normal. It is concluded that serum alkaline phosphatase activity as high as 40 King-Armstrong units/100 ml can occur in healthy Ghanaian children, aged 1115 years, who have normal serum calcium, magnesium and phosphate levels and also normal liver function tests.