HEMOGLOBIN + HEMATOCRIT

"Clinical Significance
Hemoglobin and Hematocrit - Usual method for determining anemia. Used to calculate indices.

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.

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
Hemolysis • Clotted • Received frozen

Setup Schedule, Preferred Specimen(s), Minimum Volume"