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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Parathyroid function tests with EDTA infusions in infancy and childhood.

To determine the functional capabilities of the parathyroid glands, 17 EDTA infusions were given to 11 children (ages 1 month to 12 years) and to two mothers of four of the children. Serum ionized Ca fell from 4.1 mg/dl to 3.4 mg/dl. Excessive parathyroid hormone responses were elicited during seven of nine EDTA infusions in five children and in one adult with hypophosphatemic rickets, during the active phase of rickets. In four of five subjects with problems related to hypercalcemia, borderline low or undetectable PTH responses were elicited. Three relatively normal PTH responses were obtained, two in an infant after phosphate-induced hypocalcemic tetany was corrected, and one in a child with a malabsorption syndrome. The renal tubular reabsorption of phosphate was inversely related and the urinary cyclic AMP excretion was positively related to the PTH response. Thus EDTA infusions in infants and children might be useful in the identification of hyper-, normo-, or hypoparathyroid states and would be of value in defining the functional condition of the parathyroid glands in children with deranged Ca or P metabolism.[1]


  1. Parathyroid function tests with EDTA infusions in infancy and childhood. Tsang, R.C., Chen, I.W., McEnery, P., Brown, D.R., Johnson, J.R., Lesniewicz, J. J. Pediatr. (1976) [Pubmed]
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