Days Set Up
Monday - Friday
Analytic Time

8 hours

MiChart Code
Soft Order Code

Test Updated:


Quantitative IgG

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

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MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology


Test Usage

To evaluate humoral immunity and monitor therapy in B cell neoplasms, particularly myeloma.

Reference Range

Cord blood (age <1 mos): 610 - 1540 mg/dL, age 1 mos: 240 - 870 mg/dL, age 2-5 mos: 170 - 670 mg/dL, age 6-9 mos: 210 - 870 mg/dL, age 10-11 mos: 280 - 1030 mg/dL, age 1 yr: 330 - 1160 mg/dL, age 2-3 yrs: 405 - 1160 mg/dL, age 4-5 yrs: 440 - 1190 mg/dL, age 6-150 yrs: 620 - 1520 mg/dL.

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

Specimen Requirements

Collection Offsite

Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate. Store at 2-8°C up to 8 days.
Samples may be frozen at -20°C or below for up to 3 months if they are frozen within 24 hours after collection.

Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.3 mL serum

Billing Information

CPT Code
Pro Fee Code

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.