Days Set Up
Daily, 24 hours
Analytic Time

2 hours

MiChart Code
Soft Order Code

Test Updated:


GFR (Glomerular Filtration Rate)
Glomerular Filtration Rate (GFR)

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All specimens should be accompanied by a requisition.

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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

Colorimetic Rate

Test Usage

Evaluation of renal function

Reference Range

1-4 years: 0.2 - 0.6 mg/dL, 5-11 years: 0.4 - 0.9 mg/dL, 12-150 years, male: 0.7 - 1.3 mg/dL, female: 0.5 - 1.0 mg/dL. Estimated Glomerular Filtration Rates (eGFR) for both an African American and a non-African American individual calculated using the MDRD study equation will be reported with serum creatinine levels ordered alone or as part of a panel for patients aged 18 - 100 years. A GFR estimate between 15 and 59 mL/min for >= 3 months is classified as chronic kidney disease (Stage 3 or 4).

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

Specimen Requirements

Collection Onsite

Collect specimen in an SST tube.

Collection Offsite

Collect specimen in an SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 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.