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CD4
CD4 COUNT FOR MONITORING, BLOOD

Test Code CD4 
Test CD4 COUNT FOR MONITORING, BLOOD 
Methodology Flow Cytometry 
Description Useful for monitoring CD4 counts in HIV positive individuals.

Includes

Percent of total lymphs:
CD3+ (T Cells)
CD4+ (T Cells)
CD8+ (T Cells)

Absolute Counts:
Absolute CD3+
Absolute CD4+
Absolute CD8+
CD4/CD8 Ratio 

Specimen NOTE: Specimen must be received at the NorDx Scarborough facility by midnight Friday to guarantee processing within 48 hrs of collection. Do not collect specimen on Friday afternoon for Saturday arrival at the Scarborough location or before a holiday weekend.

Draw blood in a 5ml EDTA lavender-top tube. Forward promptly at AMBIENT TEMPERATURE. SPECIMEN CANNOT BE FROZEN

NOTE: DATE OF COLLECTION, AND CLINICAL INFORMATION ARE REQUIRED ON REQUEST FORM FOR PROCESSING. 

Reference Values Percentage and absolute counts of T-Cell markers reported with age specific normal ranges. 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 86359  T cells, total count
86360  T cells, absolute CD4 and CD8 count.

References