Glucagon
Use
The Glucagon test is used as an aid in the diagnosis and monitoring of glucagonoma, a type of pancreatic neuroendocrine tumor. It measures the level of glucagon in the plasma, which can be elevated in individuals with glucagonoma or other conditions affecting glucagon levels.
Special Instructions
Patients are required to fast for 8-12 hours prior to specimen collection to ensure accurate measurement. Mix well after collection, separate from cells within 1 hour, and ensure specimen is adequately frozen for transport.
Limitations
Potential interferences include hemolyzed, lipemic, icteric, or clotted specimens which can affect the accuracy of results. The test relies on the ELISA methodology which, while sensitive, can be subject to cross-reactivity or variability depending on sample handling and test conditions.
New York Approved
Methodology
Immunoassay (ELISA)
Biomarkers
LOINC Codes
- 2338-2
Result Turnaround Time
3-11 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
2 mL
Minimum Volume
0.5 mL
Container
Lavender or pink (K2EDTA or K3EDTA)
Collection Instructions
Mix well. Separate from cells within 1 hour of collection. Transfer to an ARUP standard transport tube.
Patient Preparation
Fast 8-12 hours prior to collection.
Storage Instructions
Frozen. Separate specimens must be submitted when multiple tests are ordered.
Causes for Rejection
Hemolyzed, lipemic, icteric, or clotted specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 4 hours |
| Refrigerated | 3 days |
| Frozen | 1 month |