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Hematocrit
Test CodeHCT
Alias/See Also
LAB3010005
HCT
HCT
CPT Codes
85014
Preferred Specimen
4.0 mL whole blood collected in a K2 EDTA vaccutainer (lavender tube)
Minimum Volume
0.5 mL whole blood
Other Acceptable Specimens
Whole blood collected in EDTA capillary tubes, raised bottom tubes, or 6 mL pink EDTA tubes
Specimen Stability
Samples stored refrigerated (2 - 8oC) with normal results may be analyzed up to 48 hours without significant loss of differential stability.
Microtainers should be analyzed within 4 hours of collection.
Sample stability at room temperature is 24 hours for samples collected in 4 mL EDTA tubes.
Microtainers should be analyzed within 4 hours of collection.
Sample stability at room temperature is 24 hours for samples collected in 4 mL EDTA tubes.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted samples
Grossly hemolyzed samples
Contaminated samples
Grossly hemolyzed samples
Contaminated samples
Reference Range
| Sex | Age | Reference Range |
|---|---|---|
| M/F | 0 - 1 week | 46.0 - 68.0% |
| M/F | 1 - 2 weeks | 46.0 - 61.0% |
| M/F | 2 - 3 weeks | 39.0 - 53.0% |
| M/F | 3 - 4 weeks | 37.0 - 49.0 % |
| M/F | 4 weeks - 45 days | 30.0 - 42.0% |
| M/F | 45 days - 1 year | 30.0 - 40.0% |
| M/F | 1 - 6 years | 32.0 - 42.0 % |
| M/F | 6 - 12 years | 35.0 - 45.0% |
| M | 12 - 18 years | 37.0 - 47.0% |
| M | 18 - 150 years | 42.0 - 52.0% |
| F | 12 - 150 years | 37.0 - 47.0% |
Performing Laboratory
Penn Medicine Lancaster General Health
