Cortisol, total

Alphabetical Test listing

Cortisol, total-8813

Test name:

Cortisol, total

Test number:

8813

Excellian order number:

LAB8813

Abbreviation:

COR

Limitations:

Biotin supplements may cause clinically significant interference for this test assay. If interference is suspected, it is strongly recommended that biotin is discontinued for at least one week prior to retesting.

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

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

Transport container:

Gold serum separator (SST) tube

Alternate specimen type:

Lithium heparin (Li hep) plasma

Alternate collection container:

Lt green plasma separator (PST)

Alternate collection instructions:

Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting

Alternate processing instructions:

Spin within two (2) hours of sample collection

Alternate transport container:

Lt green plasma separator (PST)

Transport and stability:

Refrigerated (preferred) - 4 days

Ambient - 24 hours

Frozen - 12 months

Reason for rejection:

Improper labels (unlabeled or mislabeled)
Hemolysis (some procedures)
Improper anticoagulant or ratio
Delay in transport
Improper storage temperature affecting results
Improper container
Leaking container resulting in compromised specimen
Quantity not sufficient (QNS)

Performing lab:

AHL - Chemistry: C

Days set up:

Daily

TAT:

1 day

Method:

Electrochemiluminescence immunoassay (ECLIA)

Reference ranges:

6am - 10am : 4.82 -19.5 µg/dL

4pm - 8pm : 2.47 - 11.9 µg/dL

CPT codes:

82533

Date created:

03/07/2012

Revised date:

12/26/2022

Review date:

01/04/2024