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Test Code ​​​​​​​LAB511 Adrenocorticotropic Hormone, Plasma

Important Note

Mayo's test code: ACTH

 

NOTE: For Patients presenting for an ACTH Stimulation tests, they are registered and collected by the Infusion Services. For all other patients please see draw requirements below.

The test is collected by infusion services and requires pre-registration.  The doctor needs to fax the orders to infusion to verify correct test.  Infusion services will do the pre-authorization which may take up to 10 days. Infusion services will then make the appointment with patient.   Expect up to 1 ½ hours of the patients time for the appointment.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Reporting Name

Adrenocorticotropic Hormone, P

Specimen Type

Plasma EDTA


Necessary Information


Separate specimens should be submitted when multiple tests are ordered.



Specimen Required


Patient Preparation: For 12 hours before specimen collection, patient should not take multivitamins or dietary supplements (eg, hair, skin, and nail supplements) containing biotin (vitamin B7).

Supplies: Sarstedt 5 mL Aliquot Tube (T914)

Collection Container/Tube: Ice-cooled, lavender top (EDTA)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Morning (7 a.m.-10 a.m.) specimen is desirable.

2. Collect with a pre-chilled lavender top (EDTA) tube and transport to the laboratory on ice.

3. Within 2 hours of collection centrifuge at refrigerated temperature and immediately separate plasma from cells.

4. Immediately freeze plasma.


Reject Due To

Gross hemolysis Reject
Gross lipemia OK

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma EDTA Frozen (preferred) 28 days
  Refrigerated  3 hours
  Ambient  2 hours

Specimen Minimum Volume

0.75 mL

Day(s) Performed

Monday through Saturday

Specimen Retention Time

2 weeks

Report Available

1 to 3 days

Reference Values

7.2-63 pg/mL (a.m. draws)

Reference ranges are based on samples drawn between 7 a.m.-10 a.m.

No established reference values for p.m. draws

Pediatric reference values are the same as adults, as confirmed by peer reviewed literature.

 

Petersen KE. ACTH in normal children and children with pituitary and adrenal diseases. I. Measurement in plasma by radioimmunoassay-basal values. Acta Paediatr Scand. 1981;70(3):341-345

 

For International System of Units (SI) conversion for Reference Values, see www.mayocliniclabs.com/order-tests/si-unit-conversion.html.

Useful For

Determining the cause of hypercortisolism and hypocortisolism

CPT Code Information

82024

LOINC Code Information

Test ID Test Order Name Order LOINC Value
ACTH Adrenocorticotropic Hormone, P 2141-0

 

Result ID Test Result Name Result LOINC Value
ACTH Adrenocorticotropic Hormone, P 2141-0

Forms

If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

-General Request (T239)

-Oncology Test Request (T729)