Test Code HCT Hematocrit
Additional Codes
| Cerner | NextGen | 
| Hematocrit | Hematocrit | 
| HCT | 
 | 
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 | 
 
 | 
| 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.
 
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