Free and Total Plasma Cortisol Measured by Immunoassay and Mass Spectrometry Following ACTH1–24 Stimulation in the Assessment of Pituitary Patients
Author(s) -
Morton G. Burt,
Brenda L. Mangelsdorf,
Anne Rogers,
Jui T. Ho,
John G. Lewis,
Warrick J. Inder,
Matthew Doogue
Publication year - 2013
Publication title -
the journal of clinical endocrinology and metabolism
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.206
H-Index - 353
eISSN - 1945-7197
pISSN - 0021-972X
DOI - 10.1210/jc.2012-3576
Subject(s) - immunoassay , medicine , endocrinology , adrenocorticotropic hormone , stimulation , chemistry , acth stimulation test , hydrocortisone , hormone , antibody , immunology
Measurement of plasma cortisol by immunoassay after ACTH₁₋₂₄ stimulation is used to assess the hypothalamic-pituitary-adrenal (HPA) axis. Liquid chromatography-tandem mass spectrometry (LCMS) has greater analytical specificity than immunoassay and equilibrium dialysis allows measurement of free plasma cortisol.
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