Helper T-Lymphocyte Marker CD4 (CD4)
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| Synonyms:
| None listed |
| Specimen: | Whole blood and peripheral blood smear; (1) Purple (EDTA) and (1) Yellow (ACD-A) top vacutainer tube and (1) peripheral smear. |
| Volume: | EDTA and ACD-A whole blood tubes and (1) peripheral slides. |
| Minimum Volume: | |
| Collection: | Collect specimens Monday through Thursday only. Maintain at room temperature.
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| Rejection Criteria: | Hemolysis; specimen refrigerated or frozen; clotted specimen; contaminated specimen; improper labeling. |
| Reference Range: | See report |
| Methodology: | Flow Cytometry |
| Test Use: | Monitor patient's helper T-cell status |
| Additional Information: | Specimen must arrive at reference lab Monday through Friday only and within 24 hours of venipuncture |
| Testing Includes: | Specimen sent to LabCorp. LabCorp test#: 505008. Percentage of CD3+CD4+; absolute CD3+CD4+ (helper/inducer); absolute lymphocyte count; CBC
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| Testing Facility: | LabCorp |