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.

Test Details
Days Set Up
Monday - Friday at 4pm. If not received by 4pm on Friday AT MAYO, the test will be cancelled. Specimen must be in Specimen Processing no later than 8 pm Monday - Thursday.
Analytic Time

4 - 6 days

Soft Order Code
MiChart Code
DHR Flow PMA, Blood (Sendout)
  • Granulocyte Function Assay
  • Neutrophil Function Assay
  • Oxidative Burst Assay
  • Chronic Granulomatous Disease (CGD) Assay
  • Nitroblue Tetrazolium (NBT) Replacement Assay
  • OXBU
  • NOXB
  • Neutrophil Oxidative Burst
  • DHRP
Reference Laboratory
Mayo DHRP (62765)
Special Testing
Specimen Requirements

Collect Monday-Thursday only. Specimen must be in Specimen Processing no later than 8 pm Monday - Thursday. Requires a non-related control specimen to accompany specimen

Collection Instructions

MLabs clients please notify the MLabs Client Services Center prior to sending specimen. Specimens are accepted Monday - Thursday only and must be received by Mayo within 48 hours of collection. Specimen MUST be in Specimen Processing no later than 8 pm Monday-Thursday. 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
Additional Information

Test sent to Mayo Medical Laboratories.

CPT Code
Fee Code
NY State Approved