Ordering Guidance

This test requires multiple whole blood specimens to perform all testing. If only one whole blood specimen type is received, only the testing associated with that specimen type will be performed. Be advised that this may change the degree of interpretation received with the report.

Shipping Instructions

Testing is performed Monday through Friday. Specimens not received by 4 p.m. (CST) on Friday may be canceled.

Collect and package specimens as close to shipping time as possible. Ship specimens overnight in an Ambient Shipping Box-Critical Specimens Only (T668) following the instructions in the mailer. It is recommended that specimens arrive within 24 hours of collection.

Samples arriving on the weekend and observed holidays may be canceled.

Necessary Information

Date and time of collection and ordering healthcare professional name and phone number are required.

Specimen Required

Two separate whole blood specimens, EDTA and (possibly 2 tubes) sodium heparin, are required.

For serial monitoring, it is recommended that specimens are collected at the same time of day.

Supplies: Ambient Shipping Box-Critical Specimens Only (T668)

Specimen Type: EDTA whole blood

Container/Tube: Lavender top (EDTA)

Specimen Volume: 3 mL

Collection Instructions:

1. Send whole blood specimen in original tube. Do not aliquot.

2. Label specimen as TBBS / Quantitative Lymphocyte Subsets: T, B, and Natural Killer (NK) Cells, Blood

Additional Information: For serial monitoring, it is recommended that specimen collection be performed at the same time of day.

Specimen Type: Sodium heparin whole blood

Container/Tube: Green top (sodium heparin)

Specimen Volume: 15 mL

Collection Instructions:

1. Send whole blood specimen in original tube. Do not aliquot.

2. Label specimen as GLIC / CD8 T-Cell Immune Competence, Global, Blood