Gastrin, Two Specimens
Use
The Gastrin, Two Specimens test is used to detect abnormalities in gastrin levels, which can help diagnose disorders such as Zollinger-Ellison syndrome and other conditions associated with excess gastric acid production.
Special Instructions
Please refer to the directions for Sequential Sampling. This panel is a series panel requiring multiple tubes to be drawn at multiple time points. It is used to collect an initial tube (baseline) and then treat the patient with a substance like a drug or glucola, followed by additional collections after administration. It is important to ensure that patients cease biotin supplements at least 72 hours prior to sample collection to prevent interference with test results.
Limitations
The test may exhibit interference when the sample is collected from an individual consuming a high dose of biotin. The known limitation includes potential inaccuracies if the testing protocol is not followed correctly, particularly the sequential sampling and timing of subsequent collections.
Methodology
Immunoassay (Immunochemiluminometric assay (ICMA))
Biomarkers
LOINC Codes
- 46963-5
- 59831-8
- 59832-6
- 59831-8
- 46963-5
- 59832-6
Result Turnaround Time
3-5 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
Sequential specimens should be collected with the first being a baseline sample followed by additional samples after administration of a stimulus.
Patient Preparation
Patients should stop biotin supplements at least 72 hours prior to collection.
Causes for Rejection
Biotin interference or incorrect sequential sampling procedures.