TEST ID SALCT Cortisol, Saliva
Reporting Name
Cortisol, SalivaSpecimen Type
SalivaNecessary Information
Collection time is required.
Specimen Required
Patient Preparation:
1. Do not brush teeth before collecting specimen.
2. Do not eat or drink for 15 minutes prior to specimen collection.
Supplies: Cortisol, Saliva Collection Kit (T514)
Container/Tube: SARSTEDT Salivette
Specimen Volume: 1.5 mL
Collection Instructions:
1. Provide patient with a Saliva Collection Kit (Salivette) containing the Cortisol - Saliva Collection Instructions and ask them to follow the instructions as written.
2. Instruct patient to collect specimen between 11 p.m. and midnight and record collection time on the Cortisol - Saliva Collection Instructions sheet.
3. Instruct patient to return Cortisol - Saliva Collection Instructions with the appropriately labeled Salivette to the laboratory.
Additional Information:
1. Reference values are also available for an 8 a.m. (7 a.m.-9 a.m.) or a 4 p.m. (3 p.m.-5 p.m.) collection, however, the 11 p.m. to midnight collection is preferred.
2. If multiple specimens are collected, submit each vial under a separate order.
Specimen Minimum Volume
0.6 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Saliva | Refrigerated (preferred) | 28 days | |
Frozen | 60 days | ||
Ambient | 28 days |
Special Instructions
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
7 a.m.-9 a.m.: 100-750 ng/dL
3 p.m.-5 p.m.: <401 ng/dL
11 p.m.-midnight: <100 ng/dL
Day(s) Performed
Monday through Friday
Report Available
2 to 5 daysSpecimen Retention Time
2 weeksPerforming Laboratory
Mayo Clinic Laboratories in RochesterCPT Code Information
82533
Forms
If not ordering electronically, complete, print, and send General Request (T239)
Useful For
Screening for Cushing syndrome
Diagnosis of Cushing syndrome in patients presenting with symptoms or signs suggestive of the disease