93480-2
LOINC Code
| LOINC code | 93480-2 | ||||||||||||||||||||||||||||
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| name | |||||||||||||||||||||||||||||
| description | The corticotropin releasing hormone (CRH) stimulation test is used to evaluate the hypothalamic-pituitary axis and help diagnose adrenocorticotrophic hormone (ACTH or corticotropin) dependent Cushing's disease. CRH stimulation cannot distinguish between Cushing's and pseudo-Cushing's. During this procedure, baseline cortisol measurements are taken followed by administration of 1 ug/kg of CRH, after which cortisol is measured again at timed intervals. In patients with Cushing's, cortisol concentrations at 30 and 45 minutes post CRH administration should be at least 20% higher than the mean baseline value.[NCBI Books: NBK278940] The timing for baseline and post-CRH cortisol measurements vary depending on local protocol. ACTH levels may also be measured [LOINC: 91707-0] as part of a CRH stimulation test. | ||||||||||||||||||||||||||||
| status | ACTIVE | ||||||||||||||||||||||||||||
Fully-Specified Name | |||||||||||||||||||||||||||||
| component | Cortisol post corticotropin releasing hormone stimulation panel | ||||||||||||||||||||||||||||
| property | - | ||||||||||||||||||||||||||||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||||||||||||||||||||||||||||
| system | Ser/Plas Ser = Serum Plas = Plasma | ||||||||||||||||||||||||||||
| scale | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | ||||||||||||||||||||||||||||
| method | |||||||||||||||||||||||||||||
Additional Names | |||||||||||||||||||||||||||||
| short name | 17-Hydroxycorticosterone; ACTH; ACTH RH; Adrenocorticotrophic hormone; Adrenocorticotropin; After; c206; c74; CHEMISTRY.CHALLENGE TESTING; Compound F; Coritsol; Cort; Corticotropin Releasing Factor; Cortisol p CRH stimulation Pnl; Cortrosyn; CRF; CRH; F; | ||||||||||||||||||||||||||||
Basic Attributes | |||||||||||||||||||||||||||||
| class | PANEL.CHAL | ||||||||||||||||||||||||||||
| type | 1 Laboratory | ||||||||||||||||||||||||||||
| order vs. observation | Cortisol p CRH | ||||||||||||||||||||||||||||
Panel Components | |||||||||||||||||||||||||||||
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History/Usage | |||||||||||||||||||||||||||||
| first released | |||||||||||||||||||||||||||||
| last updated | 2.67 | ||||||||||||||||||||||||||||
| last change type | ADD - added | ||||||||||||||||||||||||||||
Related Names | |||||||||||||||||||||||||||||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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