Cortisol, Saliva
Additional Codes
LAB3321
Performing Laboratory
Mayo Clinic Laboratories in RochesterSpecimen 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 |
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
CPT Code Information
82533
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
SALCT | Cortisol, Saliva | 2142-8 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
84225 | Cortisol, Saliva | 2142-8 |
23612 | AM Cortisol | 58674-3 |
23613 | PM Cortisol | 58668-5 |
23614 | Midnight Cortisol | 58642-0 |
Report Available
2 to 5 daysSpecimen Retention Time
2 weeksSpecial Instructions
Forms
If not ordering electronically, complete, print, and send General Request (T239)