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HelpTest ID XHIM X-Linked Hyper IgM Syndrome, Blood
Useful For
Screening for X-linked hyper-IgM (XL-HIGM) or CD40L deficiency, primarily in male patients younger than 10 years
Ascertaining XL-HIGM carrier status in women of child-bearing age (younger than 45 years)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
WB Sodium HeparinShipping Instructions
Testing is not performed on Saturday, Sunday, or observed holidays. Only collect and ship specimens for arrival on days when testing is performed.
Specimens received on days when testing is not performed or after 5 p.m. Central on Friday will be canceled if specimen is outside of stability when testing is next performed.
Collect and package specimen as close to shipping time as possible. It is recommended that specimens arrive within 24 hours of collection.
Necessary Information
The ordering healthcare professional's name and phone number are required.
Specimen Required
Container/Tube: Green top (sodium heparin)
Specimen Volume: 4 mL
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Additional Information: For serial monitoring, it is recommended that specimen collection be performed at the same time of day.
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| WB Sodium Heparin | Ambient | 72 hours | GREEN TOP/HEP |
Reference Values
Present
Day(s) Performed
Monday through Friday
CPT Code Information
88184-Flow cytometry, cell surface, cytoplasmic
88185 x 6-Each additional marker
Report Available
3 to 4 daysReject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |