Hematocrit
Also known as HCT, PCV, CRIT
What it measures
- HematocritLOINC 4544-3
Specimen
- Specimen
- Whole blood from a full EDTA (lavender-top) tube
- Minimum volume
- Microtainer 0.5 mL • 1 mL whole blood EDTA tube
- Also accepted
- Whole blood from a full EDTA (tan-top) tube
- Container
- EDTA (lavender-top) tube
- Temperature
- Room temperature
Maintain specimen at room temperature. Do not refrigerate. If multiple draw, collect EDTA (lavender-top) tube last. Traumatic draw can introduce thromboplastin and trap WBC and platelets. Refrigeration can precipitate fibrin and trap WBC and platelets. Note: If drawn with lead testing, EDTA (tan-top) is required.
Turnaround
Set up: Daily (Day shift and Night shift); Report available: 2 days
Billing
CPT 85014