Days Set Up
7 days, 24 hours
Analytic Time

1 day

MiChart Code
Soft Order Code

Test Updated:


Looking to order a test?

We’ve provided helpful links to make ordering easy.

Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

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

Order Kits and Supplies

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

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology

Chemiluminescent Immunoassay

Test Usage

For qualitative detection of SARS-CoV-2 total antibodies (including IgG and IgM) to indicate recent or prior infection.

<a href="/static/apps/handbook/pdfs/Antibody-fact-sheet-for-health-care-provider_eCG08252020.pdf" target="_blank">Antibody Fact Sheet for Health Care Provider</a>

Reference Range

< 1.0 index = Negative for antibody
=/> 1.0 index = Positive for antibody
Measurement units = Index value (signal to cutoff ratio)

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

Specimen Requirements

Collection Onsite

Collect specimen in SST tube.

Collection Offsite

Collect specimen in SST tube. Centrifuge, aliquot, and transport at refrigerated temperature.

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

Billing Information

CPT Code
Pro Fee Code

Have More Questions?

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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.