Narcolepsy evaluation

Alphabetical Test listing

Narcolepsy evaluation-994

Narcolepsy evaluation

HLA DQB1*06:02 and HLA DQA1*01:02 are associated statistically with narcolepsy and are sometimes used as tests in support of that diagnosis.


Even with appropriate precautions, an occasional specimen may not be satisfactory for testing. In such cases, fresh specimens should be collected for retesting. Narcolepsy-associated HLA alleles are not diagnostic, but they are useful in stratifying risk.

EDTA whole blood
7 mL
3.0 mL

Immediatley following collection, mix sample by inverting 8 - 10 times to prevent clotting


Maintain specimens at room temperature. Protect from extreme heat or cold.


Lavender (EDTA), 10mL


Ambient (strict) – 7 days

Refrigerated – NO

Frozen – NO

  • Incorrect specimen container (tube type)
  • Yellow-top (ACD) tube
LabCorp (167139): R-NX
7 days

Polymerase chain reaction (PCR)/sequence-specific oligonucleotide probes (Luminex®)

  • Reported as positive or negative
  • An interpretive report will be included
81383 x 2