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HNK1 (CD57) Panel

Test ID: 


CPT code:

86357, 86356


HNK1 (CD57) Profile

Clinical Use:

Monitor the CD57 lymphocyte subset in patients with chronic Lyme disease

Specimen Type:

Whole blood

Requested Volume: 

Fill tube(s) to capacity.

Container Type: 

Lavender-top (EDTA) tube and yellow-top (ACD-A) or (ACD-B) tube


Invert tube 8 to 10 times immediately after collection. To preserve cellular viability, collect specimen so it will arrive in the laboratory within 48 hours of collection. Indicate date and time of venipuncture on the tube(s) and on the test request form.

Storage Instructions:

Maintain specimen at room temperature. Do not freeze or refrigerate.

Rejection Criteria

Specimen refrigerated or frozen; clotted specimen; hemolysis; contamination

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