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Glucagon Blood 519
Test CodeGLUCAGON
Alias/See Also
GLUCAGON
CPT Codes
82943
Preferred Specimen
2 mL plasma collected in an EDTA (lavender-top) tube
Patient Preparation
Overnight fasting is required
Minimum Volume
1
Instructions
Fasting specimen required. Draw EDTA (LAV) send plasma Froz
Transport Container
LAV
Transport Temperature
F
Specimen Stability
Room temperature: Unacceptable
Refrigerated: 2 hours
Frozen: 28 days
Refrigerated: 2 hours
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Samples received refrigerated • Gross hemolysis
Methodology
Enzyme Linked Immunosorbent Immunoassay (ELISA)
Setup Schedule
Set up: Mon; Report available: 7-14 days
Reference Range
11-78 pg/mL
Clinical Significance
The glucagon assay is useful primarily when considering a glucagon-secreting tumor of the pancreas. Glucagonomas cause an unusual but characteristic syndrome consisting of a rash, mild diabetes, weight loss and hypoamninoacidemia. Measurement of plasma glucagon confirms the diagnosis; glucagon levels are very high in the setting of glucagonoma.
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |