Referred Tests
| Web: | mayocliniclabs.com |
|---|---|
| Email: | mcl@mayo.edu |
| Telephone: | 800-533-1710 |
| International: | +1 855-379-3115 |
| Values are valid only on day of printing. | |
Test ID: TCD4
CD4 Count for Immune Monitoring, Blood
Specimen Type 
Describes the specimen type validated for testing
Whole Blood EDTA
Shipping Instructions
It is recommended that specimens arrive within 24 hours of draw. Draw and package specimen as close to shipping time as possible.
Necessary Information
Date of draw is required.
Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing
For serial monitoring, we recommend that specimen draws be performed at the same time of day.
Container/Tube: 4 mL Lavender top (EDTA)
Specimen Volume: 3 mL
Collection Instructions: Send specimen in original tube. Do not aliquot.
Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory
0.2 mL
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood EDTA | Ambient | 72 hours | PURPLE OR PINK TOP/EDTA |