Test Overview
Test Methodology

Immunoassay

Test Usage

Diagnosis of glucagonoma (glucagon producing tumors) and glucagon-produced hypoglycemic disorders.

Reference Range *

< or =6 hours: 100-650 pg/mL
1-2 days: 70-450 pg/mL
2-4 days: 100-650 pg/mL
4-14 days: declining gradually to adult levels
>14 days: < or =80 pg/mL (range based on 95% confidence limits)
Glucagon levels are inversely related to blood glucose levels at all ages. This is particularly pronounced at birth and shortly thereafter, until regular feeding patterns are established. This explains the higher levels immediately after birth, which then first fall as the glucagon release mobilizes the infant's glucose stores, then rise again as stores are depleted, finally normalizing towards adult levels as regular feeding patterns are established.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Tuesday, Thursday
Analytic Time

4 - 8 days

Soft Order Code
GLP
MiChart Code
Glucagon
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo GLP (9358)
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Collect specimen in chilled lavender top tube from a fasting patient. Following collection place Vacutainer® on ice for 10 minutes, then centrifuge, aliquot plasma into a plastic vial and freeze.

    Special Handling

    Fasting specimen. Collect in prechilled tube and place on ice immediately. Must arrive in lab or aliquot and freeze within 15 minutes.

    Normal Volume
    2 ml plasma
    Minimum Volume
    0.6 ml plasma
    Storage Temperature
    Strict frozen
    Additional Information

    Test sent to Mayo Clinic Laboratories.

    Billing
    CPT Code
    82943
    Fee Code
    23380
    LOINC
    2338-2
    NY State Approved
    No