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Test ID BLOD1391 Dihydrorhodamine (DHR) Flow Cytometric Phorbol Myristate Acetate (PMA) Test, Blood

Useful For

Diagnosis of chronic granulomatous disease (CGD), X-linked and autosomal recessive forms, complete myeloperoxidase (MPO) deficiency; monitoring chimerism and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase function posthematopoietic cell transplantation


Assessing residual NADPH oxidase activity pretransplant


Identification of carrier females for X-linked CGD; assessment of changes in lyonization with age in carrier females

Reporting Name


Specimen Type

WB Sodium Heparin

Shipping Instructions

Specimens are required to be received in the laboratory weekdays and by 4 p.m. on Friday. Draw and package specimen as close to shipping time as possible. It is recommended that specimens arrive within 24 hours of draw. Ship specimen overnight in an Ambient Mailer-Critical Specimens Only (T668).

Samples arriving on the weekend may be canceled.

Necessary Information

Ordering physician name and phone number are required.

Specimen Required

A whole blood sodium heparin specimen and a whole blood sodium heparin control specimen from an unrelated, healthy donor are required.


Supplies: Ambient Mailer-Critical Specimens Only (T668)



Container/Tube: Green top (sodium heparin)

Specimen Volume: 5 mL

Collection Instructions: Send specimen in original tube. Do not aliquot.


Normal Control:

Container/Tube: Green top (sodium heparin)

Specimen Volume: 5 mL

Collection Instructions:

1. Draw a control specimen from a normal (healthy), unrelated person within an hour of the patient.

2. Label clearly on outermost label normal control.

3. Send specimen in original tube. Do not aliquot.

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time
WB Sodium Heparin Ambient 48 hours

Reject Due To


Mild OK; Gross reject


Mild OK; Gross reject




Lithium heparin
Green top microtube

Reference Values

Result Name


Cutoff for defining normal

% PMA ox-DHR+






Control % PMA ox-DHR+



Control MFI PMA ox-DHR+




The appropriate age-related reference values for Absolute Neutrophil Count will be provided on the report.

Day(s) and Time(s) Performed

Monday through Friday

Specimen must be received by 4 p.m. on Friday.

Analytic Time

3 days

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test was developed using an analyte specific reagent. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information



LOINC Code Information

Test ID Test Order Name Order LOINC Value
DHRP DHR Flow PMA, B In Process


Result ID Test Result Name Result LOINC Value
ANC Absolute Neutrophil Count 751-8
PMAP % PMA ox-DHR+ 85376-2
PMAM MFI PMA ox-DHR+ 85374-7
ANCC Control Absolute Neutrophil Count 85369-7
PMAPC Control % PMA ox-DHR+ 85377-0
PMAMC Control MFI PMA ox-DHR+ 85375-4
DHRPI Interpretation 69052-9

Method Name

Flow Cytometry