Sign in →

Test Code ADCTH Adrenocorticotropic Hormone

Important Note

This test may be affected by biotin interference. Patients on high dose biotin (5mg/day or more) should not have samples drawn until at least 24 hours after the last biotin administration.

Specimen and Container/Tube

Specimen Type: Plasma

Preferred Specimen: Lavendar K2 Top

Other Acceptable specimens: Lavendar K3 Top

Specimen Handling and Transport Instructions

UCMC Onsite Instructions: 

  • Collect specimen per standard collection procedureusing a pre-cooled collection tube
  • Samples should be placed on ice immediately after collection
  • Send to laboratory immediately after collection

 

UCMC Offsite and UC MedLab Outreach Instructions: 

  • Collect specimen per standard collection procedure using a pre-cooled collection tube
  • Samples should be placed on ice immediately after collection.
  • Centrifuge specimens at >2500 x g for 10 minutes at room temperature.
  • Carefully remove plasma from cells using a plastic transfer pipette.
  • Aliquot removed plasma into a plastic tubes containing a minimum of 0.2 mL of specimen.
  • Plasma samples must then be frozen at -20oC.
  • Once solidly frozen, they must be shipped on dry ice. Samples that have thawed in transit will be rejected.

 

Rejection Criteria

  • Common specimen rejected situations include: incorrect specimen type, insufficient volume, missing or incomplete specimen identifiers, incorrect specimen transport, or specimens outside stability limits. 
  • Specimens that are clotted or grossly hemolyzed.
  • Specimens that were transported unspun/whole blood and draw time is greater than 6 hours

Reference Values

 

Test

Age

Sex

Reference Range

ADCTH

All

All

5-52 pg/mL

Critical Values

Analyte

Unit

Low

High

Age

N/A

N/A

N/A

N/A

N/A

CPT Codes

80400

LOINC Codes

2141-0

Volume

Preferred Volume: 0.5 mL

Minimum Volume: 0.2 mL

Specimen Stability

Storage Temperature

Stability

Room temperature

Not Acceptable

Refrigerated

3 hours

Frozen

70 days

Collection Instructions

  • Collect specimen per standard laboratory collection procedures. 
  • Samples should be placed on ice immediately after collection.

 

Test Components

Adrenocorticotropic Hormone

Clinical Indications

Assist in the determination for the cause of hypercortisolism and hypocortisolism.

Methodology

Electrochemiluminescence immunoassay (ECLIA) - Roche Diagnostics (e801)

Additional Information

If stimulation test is required, please order test code ACHS.

Results should always be assessed in conjunction with patient's medical history, clinical examination and other
findings.

Turnaround Time

Turnaround times are relative to the time the specimen is received in the test laboratory. 

 

STAT Turnaround Time: Not Available as STAT test

Routine Turnaround Time: up to 4 hours

Testing Schedule:  24/7

Synonyms/Keyword Search

ACTH

Last Review Date

8/14/2024

Related Tests