HLA-DQ Typing for Narcolepsy

Test Code

92549

CPT Codes
81377, 81383 (x2)

Preferred Specimen

14 mL whole blood collected in an EDTA (lavender-top) tube

Minimum Volume

5 mL

Other Acceptable Specimens

Whole blood collected in: ACD (yellow-top) tube • 4 buccal swabs
Note: For cord blood, bone marrow and peripheral blood leukocyte specimen submissions, please contact BloodCenter of Wisconsin for collection, transport and stability instructions.

Instructions

Sample cannot be shipped on Saturday or the day before a holiday.

Adult patients: If requesting more than one panel for HLA Transplant Testing, no more than 14 mL whole blood collected in an EDTA (lavender-top) tube is required.

Pediatric patients: If requesting more than one panel for HLA Transplant Testing, follow drawing instructions according to age as specified below. No more than what is specified by age is required.

Pediatric volume
0-1 year: 3 mL
1-5 years: 5 mL
5-10 years: 7 mL
>10 years: 14 mL

Transport Temperature

Room temperature

Specimen Stability

Whole blood
Room temperature: 14 days
Refrigerated: Unacceptable
Frozen: Unacceptable

Buccal swabs
Room temperature: 30 days
Refrigerated: Unacceptable
Frozen: Unacceptable

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Received frozen • Citrated tubes

Methodology
Polymerase Chain Reaction Amplification • Sequence Specific Oligonucleotide Probes

FDA Status
This test was developed and their performance characteristics determined by Versiti Wisconsin, Inc. It has not been cleared or approved by the US Food and Drug Administration. This test is used for clinical purposes. It should not be regarded as investigational or for research. This laboratory is certified under the Clinical Laboratory Improvement Amendments (CLIA) as qualified to perform high complexity clinical laboratory testing.

Setup Schedule

Sets up 6 days a week.

Report Available

Reports in 4 to 6 days.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.