X-Linked Hyper IgM Syndrome, Blood
| Sunquest Code: | XLHIGM | ||
| Epic Code: | LAB6813 | Epic Name: | X Linked Hyper IgM Syn |
| Synonyms: | X-Linked Hyper IgM Syndrome, B | ||
| Methodology: | Flow cytometry | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Thur before 1300; results are reported within 3-4 days. | ||
| Special Instructions: | Specimens must be received at the reference laboratory by 1600 Fridays. Providers name and phone number are required. | ||
| Compliance: | 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 US Food and Drug Administration. |
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Collection Instructions
| Specimen: | Whole blood |
| Optimal Volume: | 4 mL |
| Minimum\Peds Volume: | 1.2 mL |
| Container: | Green (sodium heparin, no gel) |
| Causes for Rejection: | Samples received by testing laboratory after 4 pm on Friday. Frozen or refrigerated specimens. Grossly hemolyzed or lipemic specimens. |
Processing and Shipping
| Specimen Processing: | Whole blood. Do not process. |
| Shipping Instructions: | Ship at room temperature to arrive within 24 hours of collection. |
| Test Performed at or Referral Lab | Lab Sendouts (Mayo Medical Laboratories) |
| Referral Lab number: | XHIM |
Interpretive
| Reference Range: | Present. |
| Use: |
Screening for X-linked hyper-IgM (XL-HIGM) or CD40L deficiency, primarily in male patients less than 10 years of age.
Ascertaining XL-HIGM carrier status in females of child-bearing age less than 45 years of age.
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