Gastrin, Blood (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
- Collect blood after overnight fast (minimum 12 hour)
- Drugs that interfere with gastric acid secretion, in particular proton pump inhibitors (eg, omeprazole, pantoprazole, dexlansoprazole, lansoprazole, rabeprazole), can lead to significant elevations of serum gastrin levels often above the normal range. These drugs should be discontinued, if feasible, for at least 1 week before serum gastrin measurement. Drugs that interfere with gastrointestinal motility (eg, opioids) should also be discontinued for at least 5 drug half-lives before serum gastrin testing.
Test ordering requirements
Preferred specimen collection
-
Refer patient to a Laboratory Health Services Centre or a Hospital Test Centre able to process specimens within required time frame
Specimen Information
Specimen types accepted
- Serum
Specimen collection container
- Preferred collection container: Red (non-gel)
Required volume
- Optimal volume: 4.5 mL full collection tube
- Minimum volume: 1 mL serum
(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
Transport and stability
- Collect and immediately chill specimen in wet ice
- Centrifuge, aliquot and freeze serum as soon as possible
Rejection criteria
- Specimens received where the proper collection protocols were not followed
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Performance
Days/times performed
Availability |
|
Testing site |
|
Maximum laboratory time
- Seven day turnaround time by testing laboratory
Last Updated: October 18, 2024