Methodology
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Specimen Type
Stool, Timed Collection
Performing Lab
Mayo Medical Lab
Epic ID
Other Reference Test
Lab Test Days
Wednesday; A.M.
Standard TAT
2-9 Days
Collection Information
Specimen Required
5 g of 24, 48, 72 Hour Stool
Container Type
24, 48, 72-Hour Stool Container
Collection Instructions
Call lab for special Mayo stool collection kit. Special Mayo stool collection kit is located in send out cupboard. For 3 days prior to and during the collection period: 1. Patient should be on a fat-controlled diet (100-150 g fat per day). 2. No laxatives (particularly mineral oil and castor oil) 3. No synthetic fat substitutes (eg, Olestra) or fat-blocking nutritional supplements. Collection Instructions: 1. DO NOT USE OTHER CONTAINERS. 2. All containers must be sent together. 3. The entire collection must contain at least 5 g of feces. 4. The number of containers sent should be indicated on the labels (1 of 4, for example). Patient may store sample at refrigerate temperature during collection period. Barium interferes with test procedure; a waiting period of 48 hours before stool collection analysis is recommended.
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Specimen Stability
Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 30 Days
Rejection Criteria
Other containers used for time stool collection
Test Volume Required
5 g Stool
Minimum Test Volume
5 g Stool
CPT Codes
82542
Revised
02-27-18
Initials
SL