Immunoglobulins (IgG, IgA, and IgM)

Test Code

IGGAM

Alias/See Also

Epic: LAB166

Includes

Immunoglobulin G
Immunoglobulin A
Immunoglobulin M

Preferred Specimen

Specimen Type: Serum
Collection Container: Serum gel
Specimen Volume: 3 mL

Minimum Volume

0.5 mL

Other Acceptable Specimens

Collection Container: Red top

Instructions

Centrifuge and separate cells after clot formation and within 4 hours of collection.

Transport Container

Plastic vial

Specimen Stability

Room temperature: 2 months
Refrigerated: 4 months
Frozen: 6 months

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Unlabeled, mislabeled, wrong tube type, hemolyzed, visually lipemic, QNS, exceeds specimen stability requirements.

Methodology

Immunoturbidimetric

Setup Schedule

Daily

Report Available

Same day / 1 day

Reference Range

IgG
0 - 1 month: 391 - 1765 mg/dL
1 month - 1 year: 203 - 948 mg/dL
1 - 2 years: 475 - 1226 mg/dL
2 - 150 yers: 540 - 1822 mg/dL

IgM
Newborn: 6 - 21 mg/dL
3 months - 1 year: 17 - 150 mg/dL
1 - 12 years: 41 - 240 mg/dL
>12 years: 22 - 293 mg/dL

IgA
Males
0 - 3 months: 1 - 34 mg/dL
>3 months: 8 - 91 mg/dL
1 - 12 years: 21 - 291 mg/dL
12 - 60 years: 63 - 484 mg/dL
>60 years: 101 - 645 mg/dL

Female
0 - 3 months: 1 - 34 mg/dL
>3 months: 8 - 91 mg/dL
1 - 12 years: 21 - 282 mg/dL
12 - 60 years: 65 - 421 mg/dL
>60 years: 69 - 517 mg/dL

Performing Laboratory

Inova Laboratories

2832 Juniper Street

Fairfax, VA 22031

Last Updated: April 11, 2023
Last Review: N. Wolford, April 11, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.