Cortisol, free, equilibrium dialysis and LC/MS-MS

Alphabetical Test listing

Cortisol, free, equilibrium dialysis and LC/MS-MS-994

Test name:

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Useful for:

Cortisol is the primary glucocorticoid in humans, affecting glucose control, inflammation, and response to stress

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.6 mL

Minimum volume:

0.8 mL
Submission of the minimum volume does not allow for repeat testing

Collection instructions:

Immediately following collection, mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection
Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as serum
Freeze

Transport container:

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

Alternate collection container:

Red serum vial/tube, 5 mL

Alternate processing instructions:

Allow sample to clot
Spin within two (2) hours of sample collection
Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as serum
Freeze

Transport and stability:

Frozen (preferred) - 6 months

Freeze/thaw cycles - stable x6

Refrigerated - 7 days

Ambient - 7 days

Reason for rejection:

Hemolysis
Icterus
Lipemia

Performing lab:

Esoterix Endocrinology (804020) via LabCorp (504020): R-NX

Days set up:

We, Fr

TAT:

6 - 10 days

Method:

Equilibrium dialysis and high-pressure liquid chromatography (HPLC) with tandem mass spectrometry

Reference ranges:

An interpretive report will be provided

CPT codes:

82530

LOINC code:

Result 2145-1

Date created:

05/30/2019

Revised date:

12/20/2023

Review date:

12/20/2023