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A member asked:
Why do people still use a blood test for narcolepsy?
4 doctors weighed in across 2 answers
Genetic link: Narcolepsy is a chronic medical condition which leads to excessive daytime sleepiness in addition to other symptoms. There is a blood test which looks for a specific cellular marker (hla dqb1*0602) which is associated with narcolepsy. Everyone having the marker does not have narcolepsy, but most people with narcolepsy have the marker.
Answered 5/27/2012
5.8k views
Not standard: While there is a high concordance with hla type and narcolepsy i don't often use this in practice. It is not part of my workup. If positive or negative it is not confirmatory.
Answered 10/3/2016
5.7k views
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