Alpha Medical Lab
Hemoglobin and Hematocrit
Ordered Test Code:
HH
| Lab Test Component | Requirement |
|---|---|
| Test Name | Hemoglobin and Hematocrit |
| Alpha’s Order Test Code | HH |
| Specimen Collection Tube | EDTA/Full/Whole Blood |
| Collection Tube Handling | |
| Minimum Volume | Microtainer: 0.5 mL • EDTA (lavender-top) tube: 1 mL |
| Transport Temperture | Room Temp |
| Stability | Room temperature: 48 hours; Refrigerated: 48 hours (may cause platelet clumping); Frozen: Not acceptable |
| Collection Instructions | Whole blood from a full EDTA (lavender-top) tube. 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. |
Clinical Significance
Usual method for determining anemia. Used to calculate indices.
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