Bloodworks Northwest Laboratories

Immunohematology Reference Laboratory (IRL)


The Immunohematology Reference Laboratory provides serological and genomic testing to solve complex transfusion problems or for determining allosensitization. The laboratory is accredited by the AABB, and is licensed for clinical laboratory testing by the State of Washington Department of Health (Medical Test Site/CLIA).

Listed below are the most current Bloodworks Northwest Immunohematology Reference Laboratory accreditations and licenses. They may be printed for your records.

Accreditation / Licensure

State of Washington Medical Test Site License Number — MTS-0303
CLIA CLIA Certificate Number — 50D0661429
AABB Certificate of Accreditation

For a complete listing of all Bloodworks Northwest Accreditations and Licensures, please see the Licenses and Accreditations page.

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