Gastrin, 5 Minute
Also known as: GAST 5
Use
The Gastrin, 5 Minute test measures the concentration of gastrin in serum to aid in the diagnosis and management of gastrin-related disorders, such as Zollinger-Ellison syndrome, which is characterized by gastric acid hypersecretion leading to peptic ulcers. This test is critical for patients presenting with symptoms indicative of excessive gastrin production or those undergoing treatment that impacts gastrin levels.
Special Instructions
Patients should fast for 12 hours prior to specimen collection for optimal results. This test is New York state approved, ensuring compliance with regulatory standards. Appropriate specimen handling and processing are vital for accurate measurement.
Limitations
Gastrin levels can be influenced by factors such as recent food intake, specific medications, and improper specimen handling, potentially impacting test accuracy. Therefore, adherence to pre-test fasting and storage requirements is essential. Interpreting results must consider clinical context and potential cross-reactivity within the assay.
New York Approved
Methodology
Immunoassay (CLIA)
Biomarkers
LOINC Codes
- 16896-3
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
Serum separator tube (SST)
Collection Instructions
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 |