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Parathyroid hormone (PTH) assays are becoming available to clinical chemistry laboratories for in-house use. We evaluated the clinical utility of two mid-molecule PTH assays in comparison to a sensitive but technically demanding component assay. A normal reference population, and an abnormal population including cases of primary and secondary hyperparathyroidism, hypoparathyroidism, and humoral hypercalcemia of malignancy were tested. PTH determinations with each assay system and total serum calcium determinations were done on all specimens. The Endocrine Metabolic Center (EMC) kit assay and the Immuno Nuclear Corp. (INC) kit assay demonstrated adequate standard curve reproducibility and precision for clinical use. With the aid of calcium determinations each assay performed well in the separation of abnormal patient groups, and in the separation of abnormal from normal PTH-calcium homeostasis. PTH values for the reference population differed among the three assays. The component assay and the EMC assay had a negative correlation with serum calcium, but the INC assay had a positive correlation with serum calcium.
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
June 1987,
Clinical chemistry,
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
September 1982,
Mayo Clinic proceedings,
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
June 1939,
The Biochemical journal,
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
July 1989,
Annals of clinical biochemistry,
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
January 1992,
Metabolism: clinical and experimental,
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
January 1976,
British medical journal,
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
January 2011,
Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists,
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
April 1986,
Clinical endocrinology,
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
December 2003,
Surgery,
W M Ivie, and
E S Orwoll, and
M R McClung, and
T A Kenny, and
J R Swanson
March 1991,
Clinica chimica acta; international journal of clinical chemistry,
