DIAGNOSTIC TECHNIQUE FOR PRIMARY HYPERPARATHYROIDISM Russian patent published in 2020 - IPC A61B5/00 G01N33/74 G01N33/84 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to laboratory diagnostics, and can be used for diagnosing primary hyperparathyroidism. Total calcium, phosphorus in peripheral blood is determined. Content of parathyroid hormone is additionally determined in it. Index of primary hyperparathyroidism I_PHPT is calculated by formula: I_PHPT=(Ca_tot×P)/PTH×100, where Ca_tot – level of total calcium in blood plasma, mmol/l; P is phosphorus level in blood plasma, mmol/l; PTH – level of parathyroid hormone in blood plasma, pg/ml. If I_PHPT is less than or equal to 2.46, presence of primary hyperparathyroidism is stated. If I_PHPT is more than 2.46 – on absence of disease.

EFFECT: method provides the possibility of biochemical diagnosis of primary hyperparathyroidism by determining a phosphorus-calcium ratio and determining a single integral index reflecting the ratio of total calcium and phosphorus to parathormone.

1 cl, 2 ex