8 hours
Test Updated:
ACTH
Adrenal Corticotropin
Corticotropin
Plasma ACTH
ACTHR
ACTH, Right IPS
ACTHL
ACTH, Left IPS
ACTHP
ACTH, Peripheral
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Test Overview
Chemiluminescence Assay
Knowledge of ACTH levels in addition to serum cortisol and urinary free cortisol is useful in the differential diagnosis of Cushing's syndrome, ectopic ACTH syndrome (e.g., carcinoma of lung, islet cell tumors, carcinoid tumors, medullary carcinoma of thyroid), Addison's disease by hypopituitarism and ACTH-producing pituitary tumors (e.g., Nelson's syndrome).
5 - 52 pg/mL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Specimen Requirements
Collect specimen in a chilled lavender top tube. Deliver to laboratory on ice within in 30 minutes or centrifuge immediately, aliquot plasma into plastic vial, freeze within 1 hour of collection, and transport frozen on dry ice.