Hemoglobin and Hematocrit
Test Code
7998
85014, 85018
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
Clinical Significance
Hemoglobin and Hematocrit - Usual method for determining anemia. Used to calculate indices.
Test Resources
None found for this test
Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.
Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.
Test Details
Methodology
Electronic Cell, Sizing/Cytometry/Microscopy
Reference Range(s)
See individual tests
Alternative Name(s)
Hgb,HCT and HGB
Preferred Specimen(s)
Whole blood from a full EDTA (lavender-top) tube
Alternative Specimen(s)
Whole blood from a full EDTA (tan-top) tube
Minimum Volume
Microtainer 0.5 mL • 1 mL whole blood EDTA tube
Collection Instructions
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.
Note: If drawn with lead testing, EDTA (tan-top) is required.
Transport Container
EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 48 hours
- Refrigerated: 48 hours (may cause platelet clumping)
- Frozen: Unstable
Reject Criteria
Gross hemolysis • Clotted • Received frozen
Setup Schedule
Whole blood from a full EDTA (lavender-top) tube
Whole blood from a full EDTA (tan-top) tube
Microtainer 0.5 mL • 1 mL whole blood EDTA 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.
Note: If drawn with lead testing, EDTA (tan-top) is required.
Note: If drawn with lead testing, EDTA (tan-top) is required.
EDTA (lavender-top) tube
Room temperature
Room temperature: 48 hours
Refrigerated: 48 hours (may cause platelet clumping)
Frozen: Unstable
Refrigerated: 48 hours (may cause platelet clumping)
Frozen: Unstable
Gross hemolysis • Clotted • Received frozen