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HelpTest Code DHR Dihydrorhodamine Flow Cytometric Test, Blood
Specimen Type
WB Sodium HeparinShipping 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. 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 draw.
Samples arriving on the weekend and observed holidays may be canceled.
Necessary Information
Ordering physician name and phone number are required.
Specimen Required
Both a whole blood sodium heparin specimen and a whole blood sodium heparin control specimen from an unrelated, healthy donor are required.
Supplies: Ambient Shipping Box-Critical Specimens Only (T668)
Patient:
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 | 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 |
|
% fMLP ox-DHR+ |
% |
≥10% |
|
MFI fMLP ox-DHR+ |
MFI |
≥2 |
|
Control % PMA ox-DHR+ |
% |
≥95% |
|
Control MFI PMA ox-DHR+ |
MFI |
≥60 |
|
Control % fMLP ox-DHR+ |
% |
≥10% |
|
Control MFI fMLP ox-DHR+ |
MFI |
≥2 |
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.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86352 x2
Method Name
Flow Cytometry