Sign in →

Test Code DHRP Dihydrorhodamine Flow Cytometric Phorbol Myristate Acetate Test, Blood

Specimen Type

WB Sodium Heparin


Shipping Instructions


Testing is performed Monday through Friday. Specimens not received by 4 p.m. Central time on Friday may be canceled.

 

Collect and package specimen as close to shipping time as possible. Ship specimen overnight in an Ambient Shipping Box-Critical Specimens Only (T668) following the instructions in the box. It is recommended that specimens arrive within 24 hours of collection.

 

Specimens arriving on the weekend and observed holidays may be canceled.



Necessary Information


Ordering healthcare professional name and phone number are required.



Specimen Required


Two whole-blood sodium heparin specimens are required, one from the testing patient and the other from an unrelated healthy donor as a control.

 

Supplies: Ambient Shipping Box-Critical Specimens Only (T668)

 

Patient:

Container/Tube: Green top (sodium heparin)

Specimen Volume: 5 mL

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

 

Normal Control:

Container/Tube: Green top (sodium heparin)

Specimen Volume: 5 mL

Collection Instructions:

1. Collect a control specimen from the unrelated healthy donor within an hour of the patient's specimen collection time.

2. Label clearly as Normal Control and the corresponding patient information.

3. Send the whole blood specimen in the original tube. Do not aliquot.

4. Rubber band patient specimen and control vial together.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
WB Sodium Heparin Ambient 48 hours GREEN TOP/HEP

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject

Reference Values

Result Name

Unit

Cutoff for defining normal

% PMA ox-DHR+

%

≥95%

MFI PMA ox-DHR+

MFI

≥60

Control % PMA ox-DHR+

%

≥95%

Control MFI PMA ox-DHR+

MFI

≥60

 

MFI = mean fluorescence intensity

PMA = phorbol myristate acetate

DHR = dihydrorhodamine

 

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

Day(s) Performed

Monday through Friday

Report Available

3 to 4 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86352

Method Name

Flow Cytometry

Secondary ID

62765