11-Deoxycortisol

Alphabetical Test listing

11-Deoxycortisol-994

Test name:

11-Deoxycortisol

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

11-Deoxycortisol
Compound S for Matyrapone test

Useful for:

Evaluate hypothalamic-pituitary-adrenal axis and pituitary ACTH reserve.

Patient preparation information:

No isotopes administered 24 hours prior to venipuncture

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

0.5 mL

Minimum volume:

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

Collection instructions:

Immediatley 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
- The specimen should be frozen imediately, and remain frozen until testing

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
- The specimen should be frozen imediately, and remain frozen until testing

Transport and stability:

Frozen (preferred) - 2 years

Refrigerated - 1 day

Ambient - 1 day

Reason for rejection:

Recently administered isotopes

Performing lab:

Esoterix Endocrinology (500136) via LabCorp (500550): R-NX

Days set up:

We, Sa

TAT:

6 - 10 days

Method:

Liquid chromatography tandem mass spectrometry (LC/MS/MS) after chromatography and solvent extraction

Reference ranges:

An interpretive report will be provided

CPT codes:

82634

LOINC code:

Result 1657-6

Date created:

05/21/2019

Revised date:

10/20/2023

Review date:

10/20/2023