| Ordering Code | 536 |
|---|---|
| Test Name | Hematocrit |
| Alias | HCT Microhematocrit Packed Cell Volume PCV |
| Preferred Specimen | Whole Blood |
| Preferred Container | EDTA, K2 (Lavender) |
| Other Specimen/Container | Whole Blood in EDTA, K2 Microtainer (Lavender) |
| Optimum Volume | FULL DRAW |
| Collection Instructions | Do NOT collect in 7 mL EDTA tube Mix well. |
| Handling Instructions | Refrigerate specimen if transport time > 24 hours Hand mix ONLY. Do NOT mix on mechanical rocker/mixer. |
| Transport Requirements | Oahu: Ambient Airline: Refrigerated |
| Specimen Stability | Ambient: 24 Hours Refrigerated: 48 Hours |
| Rejection Criteria | Frozen, Clotted, Contaminated, Hemolyzed, Over filled tube, Under filled tube, Specimen older than stability limits. |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | Automated cell counter; Microhematocrit centrifuge (Spun Hematocrit) |
Reference range(s)
The reference ranges listed below are valid on this date of June 1, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Hematocrit | >=11Y | 40.1-51.0 | 34.1-44.9 | % | |||||
| Hematocrit | 5Y-10Y | 31.0-42.0 | 31.0-42.0 | % | |||||
| Hematocrit | 3Y-5Y | 29.0-40.0 | 29.0-40.0 | % | |||||
| Hematocrit | 1Y-3Y | 33.0-40.0 | 33.0-40.0 | % | |||||
| Hematocrit | 10M-1Y | 33.0-40.0 | 33.0-40.0 | % | |||||
| Hematocrit | 7M-10M | 33.0-40.0 | 33.0-40.0 | % | |||||
| Hematocrit | 4M-7M | 30.0-41.0 | 30.0-41.0 | % | |||||
| Hematocrit | 3M-4M | 29.0-40.0 | 29.0-40.0 | % | |||||
| Hematocrit | 50D-3M | 28.0-43.0 | 28.0-43.0 | % | |||||
| Hematocrit | 37D-50D | 28.0-51.0 | 28.0-51.0 | % | |||||
| Hematocrit | 23D-37D | 29.0-56.0 | 29.0-56.0 | % | |||||
| Hematocrit | 1W-23D | 40.0-59.0 | 40.0-59.0 | % | |||||
| Hematocrit | 0-1W | 42.0-67.0 | 42.0-67.0 | % |