Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Nighttime Salivary Cortisol; Salivary Cortisol; Salivary Cushings; Salivary Hydrocortisone
See Collection Instructions
Mayo Medical Lab
Other Reference Test
Monday, Wednesday, Friday; 4 P.M.
0.6-1.5 Saliva collected in a SARSTEDT Salivette Collection Kit
Call lab for SARSTEDT Salivette Collection Kit located in the send out cupboard. Patient Preparation: 1. Do not brush teeth before collecting specimen. 2. Do not eat or drink for 15 minutes prior to specimen collection. Collection Instructions: 1. Collect specimen between 11 p.m. and midnight, and record collection time. 2. To use the Salivette: a. Remove top cap of container to expose swab. b. Place swab directly into mouth by tipping container so swab falls into mouth. Do not touch swab with fingers. c. Keep swab in mouth for approximately 2 minutes. Roll swab in mouth, do not chew swab. d. Place swab back into its container without touching, and replace the cap. 3. Record collection time, and send appropriately labeled Salivette to laboratory.
Room Temp: 7 Days; Refrigerated: 7 Days (Preferred); Frozen: 60 Days
1.5 mL Saliva
0.6 mL Saliva
Order in Mayolink and send with Mayo courier Monday-Friday.
Reference values are also available for 8 A.M. (7 A.M.-9 A.M.) and 4 P.M. (3 P.M.-5 P.M.) collections, however, 11 P.M. to midnight collection is preferred.