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Test Code CRAV Cortisol, Right Adrenal Vein, Serum

Reporting Name

Cortisol, RAV

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Ordering Guidance


For confirming the presence of synthetic steroids, order SGSS / Synthetic Glucocorticoid Screen, Serum.



Specimen Required


Supplies: Sarstedt Aliquot Tube 5 mL (T914)

Collection Container/Tube: Red top

Specimen Volume: 1.5 mL

Submission Container/Tube: Plastic vial

Collection Instructions:

1. Morning (8 a.m.) and afternoon (4 p.m.) specimens are preferred.

2. Include time of collection.

3. Centrifuge and aliquot serum into a plastic vial.

Additional Information: If multiple specimens are collected, send a separate order for each specimen.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reference Values

No established reference values

Day(s) Performed

Monday through Friday

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

82533

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CRAV Cortisol, RAV 2143-6

 

Result ID Test Result Name Result LOINC Value
6345 Cortisol, RAV 2143-6

Report Available

2 to 5 days

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Useful For

Testing cortisol levels in the right adrenal vein

 

Second-order testing when cortisol measurement by immunoassay gives results that are not consistent with clinical symptoms, or if patients are known to, or suspected of, taking exogenous synthetic steroids

 

An adjunct in the differential diagnosis of primary and secondary adrenal insufficiency

 

An adjunct in the differential diagnosis of Cushing syndrome

Special Instructions