Test Code HCT Hematocrit
Additional Codes
Cerner |
NextGen |
Hematocrit |
Hematocrit |
HCT |
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Alternate Name(s)
HCT
Patient Preparation
None
Collection Instructions
Do not place samples on a mechanical rocker.
Specimen Requirements
Preferred Volume |
12 x 75 mm tube EDTA-2K or EDTA-3K Lavender filled to capacity |
Minimum Volume |
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Container |
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Stability |
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Rejection Criteria |
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Result Reporting and Reference Values
Reference Ranges |
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Critical Ranges |
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Reflex Testing
None
Limitations
WBC's greater than 100,000/µL may cause turbidity and falsely increase HCT value.
Useful For/ Methodology
Sysmex XN, Hematocrit (HCT) is measured as a ratio of the total RBC volume to whole blood using cumulative pulse height detection.