Corticotropin 45M post XXX challenge:SCnc:Pt:Plas:Qn: - CISMeF
Corticotropin 45M post XXX challenge:SCnc:Pt:Plas:Qn:LOINC code
Preferred Label : Corticotropin 45M post XXX challenge:SCnc:Pt:Plas:Qn:;
LOINC status : ACTIVE;
LOINC display name : Corticotropin 45 Min post Unsp challenge (P) [Moles/Vol];
LOINC long common name : Corticotropin [Moles/volume] in Plasma --45 minutes post XXX challenge;
LOINC short name : ACTH 45M p chal Plas-sCnc;
LOINC description : Timed specimens are measured for corticotropin (also called adrenocorticotropic hormone
or ACTH) for adrenocorticotropic hormone challenge tests to assist in diagnosing adrenocortical
insufficiency as found in Cushing's syndrome and Addison's disease. For the CRH (corticotropin-releasing
hormone) stimulation, CRH is given and cortisol and ACTH levels are determined before
the injection, at the injection time, and specified times following injection. The
CRH stimulation test is used to distinguish Cushings disease from conditions where
ACTH is secreted ectopically. For the Metyrapone (overnight) stimulation challenge,
metyrapone is given with a snack at midnight. Samples for cortisol, 11-deoxycortisol,
and ACTH are collected the following morning. The metyrapone stimulation test distinguishes
corticotropin-dependent causes (pituitary Cushing's disease and ectopic Cushing's
disease) from corticotropin-independent causes (carcinoma of the lung or thyroid).;