Gastrin, 10 Minute
Also known as: GAST 10
Use
The Gastrin, 10 Minute test is used to measure gastrin levels in the blood. Elevated gastrin levels can be indicative of conditions such as Zollinger-Ellison syndrome, which is characterized by excessive gastric acid production leading to peptic ulcers. The test can help in the diagnosis of gastrin-producing tumors called gastrinomas, and in monitoring levels in patients with known conditions related to gastrin excess.
Special Instructions
A 12-hour fasting period is recommended before specimen collection to ensure accurate gastrin level measurement and avoid any postprandial elevations that could affect the results.
Limitations
The test is not suitable for patients who have not adhered to the 12-hour fasting requirement as postprandial increases in gastrin could lead to false elevations. Additionally, hemolyzed or lipemic serum specimens may interfere with the assay, and plasma, tissue, or urine samples are unacceptable for this test.
New York Approved
Methodology
Immunoassay (CLIA)
Biomarkers
LOINC Codes
- 16890-6
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container
Serum separator tube (SST)
Collection Instructions
After drawing blood, transfer 1 mL serum to an ARUP Standard Transport Tube.
Patient Preparation
Patient fast for 12 hours prior to collection is recommended.
Storage Instructions
Refrigerated
Causes for Rejection
Plasma, Tissue or Urine. Grossly hemolyzed or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 8 hours |
| Refrigerated | 1 week |
| Frozen | 1 month |