| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
T and B Cells, Total
Test Code39588
Includes
Absolute Lymphocytes, Absolute CD19+ Cells, % CD19 (B Cells), Absolute CD3+ Cells, % CD3 (Mature T Cells)
Preferred Specimen
5 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
0.5 mL
Instructions
Do not freeze.
Submit the preferred EDTA tubes at room temperature.
Volumes less than 1 mL should be submitted in a pediatric EDTA tube.
Specimen must arrive at the referral laboratory within 72 hours of collection in order to meet sample stability requirements. Specimens are accepted <72 hours post collection. No other preservatives are acceptable. Specify time of day specimen was collected.
Submit the preferred EDTA tubes at room temperature.
Volumes less than 1 mL should be submitted in a pediatric EDTA tube.
Specimen must arrive at the referral laboratory within 72 hours of collection in order to meet sample stability requirements. Specimens are accepted <72 hours post collection. No other preservatives are acceptable. Specify time of day specimen was collected.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 72 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Refrigerated: Unacceptable
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
ACD (yellow-top) tube • Sodium heparin (green-top) tube
Methodology
Flow Cytometry (FC)
Setup Schedule
Set up: Daily; Report available: 2-3 days
Reference Range
See Laboratory Report
Clinical Significance
Low numbers of NK cells are found in individuals who are susceptible to viral infections, including cytomegalovirus and varicella
Performing Laboratory
| Quest Diagnostics Nichols Institute |
| 14225 Newbrook Drive |
| Chantilly, VA 20153 |
