[Use of the test with disodium salt of ethylenediaminetetraacetic acid for diagnosis of latent forms of hypoparathyroidism].

A test with disodium salt of ethylenediaminetetraacetic acid was conducted in 29 individuals--9 healthy ones, 5 patients with latent hypoparathyroidism, 7 with manifest hypoparathyroidism given vitamin D 2, and 8 patients who sustained an operation on the thyroid gland. Primary reduction of the calcium level in patients with latent hypoparathyroidism was in 12 hours combined with a low calcium level, not exceeding 8.5% mg. Along with this in the mentioned group of patients, and also in the patients operated for goiter and in some of the patients given vitamin D 2 there were observed peculiarities of the calciemic curves during the first hours of the test differentiating them from the normal. The diagnostic significance of this is discussed.