Days Set Up
Monday - Friday at 4pm. If not received by 4pm on Friday, the test will be cancelled.
Analytic Time

4 - 6 days

MiChart Code
DHR Flow PMA, Blood (Sendout)
Soft Order Code

Update Type: New Tests

Test Updated: 11/11/2020


Granulocyte Function Assay
Neutrophil Function Assay
Oxidative Burst Assay
Chronic Granulomatous Disease (CGD) Assay
Nitroblue Tetrazolium (NBT) Replacement Assay
Neutrophil Oxidative Burst

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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.

Order Kits and Supplies

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

Test FAQ

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Test Overview

Test Methodology

Flow Cytometry

Test Usage

Diagnosis of chronic granulomatous disease (CGD), X-linked and autosomal recessive forms, complete myeloperoxidase (MPO) deficiency; monitoring chimerism and NADPH oxidase function posthematopoietic cell transplantation, assessing residual NADPH oxidase activity pretransplant, and identification of carrier females for X-linked CGD; assessment of changes in lyonization with age in carrier females.

Reference Range

Interpretive report provided.

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

Specimen Requirements

Collection Offsite

MLabs clients please notify the MLabs Client Services Center prior to sending specimen. Specimens are accepted Monday - Thursday only and must be received by performing laboratory within 48 hours of collection. Specimen transport should be arranged so that the specimen is received by MLabs as close to shipping time as possible. Call for a STAT courier if necessary. Collect specimen in a green top tube. Also collect a normal control specimen in a green top tube (NOT from the patient or a family member) at the same time that the patient is drawn. Send intact whole blood stored and transported at room temperature within 24 hours of collection; do not refrigerate or freeze.

Normal Volume
5 mL whole blood
Minimum Volume
1 mL whole blood

Billing Information

CPT Code
82657, 88184
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.