Specimen:

Blood

Collection Medium:

Minimum:

Preferred minimum: 3 mL heparinized whole blood
Absolute minimum: 1 mL heparinized whole blood

Rejection Criteria:

Sample MUST be received at the reference laboratory within 24 hours of 
collection.  Collect Monday through Thursday only; do collect on 
Fridays, holidays, day before a holiday, or weekends.

Delivery Instructions:

Submit specimen to laboratory as soon as possible after collection.

Testing Schedule:

Testing performed on Tuesdays.

Analytic Time:

2 weeks

Comments:

This testing requires by the commercial laboratory to perform a 
lymphocyte subset on the sample when received.

Methodology:

Flow Cytometry

CPT Code:

88184