Gastrin
Also known as: GAST
Use
This test aids in the diagnosis of carcinoid and gastrinoma tumors. It is relevant for conditions such as Pancreatic Neuroendocrine Tumors (PNETs), Zollinger-Ellison Syndrome, and Megaloblastic Anemia.
Special Instructions
Patient fasting for 12 hours prior to collection is recommended. The specimen is collected in a serum separator tube.
Limitations
Gastrin levels may be affected by recent food intake, medications, or other health conditions. Plasma, tissue, or urine samples are unacceptable as they can lead to inaccurate results. Hemolyzed or lipemic samples are also unacceptable due to potential interference in the assay. Ambient stability is limited to 8 hours, refrigerated stability extends to 1 week, and frozen stability to 1 month.
FDA ApprovedNew York Approved
Methodology
Immunoassay (CLIA)
Biomarkers
LOINC Codes
- 2333-3
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
ARUP Standard Transport Tube
Collection Instructions
Transfer 1 mL serum to an ARUP Standard Transport Tube after collecting in a serum separator tube.
Patient Preparation
Patient should fast for 12 hours prior to collection.
Storage Instructions
Store and transport refrigerated.
Causes for Rejection
Plasma, tissue, or urine samples; grossly hemolyzed or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 8 hours |
| Refrigerated | 1 week |
| Frozen | 1 month |