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ACTH
Test CodeACTH
CPT Codes
82024
Preferred Specimen
1.5 mL plasma collected in an EDTA (lavender-top) tube
Instructions
Centrifuge immediately after collection to separate plasma from cells. Transfer plasma to a plastic specimen transport container and mark the specimen type as plasma on the container. Freeze immediately.
'Collect specimen between 7am and 10am. If drawn at any other time, the reference ranges do not apply.
'Collect specimen between 7am and 10am. If drawn at any other time, the reference ranges do not apply.
Transport Container
Plastic screw-cap vial
Transport Temperature
Frozen
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received thawed ; Gross hemolysis
Methodology
Immunoassay
Clinical Significance
Determination of ACTH is useful in differentiating between primary and secondary adrenocortical hypo- and hyperfunctional disorders: Addison's disease, Cushing's syndrome, adrenal carcinoma, ectopic ACTH syndrome, and adrenal nodular hyperplasia.
