Single Lab Test

Hemoglobin (Hb), Free, Plasma

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Categories
Turnaround Time
2 - 4 days
CPT Code
83051
Test Type

1 mL Plasma

Overview

Evaluate hemolytic anemia, especially intravascular hemolysis. Plasma hemoglobin is increased with intravascular hemolysis, ABO incompatible transfusion, traumatic hemolysis, falciparum malaria, burns, and march hemoglobinuria. Increase may occur in some cases of extravascular hemolysis, delayed transfusion reaction, slight increase in sickle cell anemia, and β-thalassemia.

High (>20 mg/dL) bilirubin, turbidity, methemalbuminemia, lipemic plasma, and hemolysis during or after venipuncture may cause falsely elevated values in the plasma hemoglobin test (method based on peroxide oxidation of TMB).

Results of this test are labeled for research purposes only by the assay's manufacturer. The performance characteristics of this assay have not been established by the manufacturer. The result should not be used for treatment or for diagnostic purposes without confirmation of the diagnosis by another medically established diagnostic product or procedure.

A pressure bandage should be applied to the site (following the puncture) to stop residual bleeding.

Collection Details

Patient Preparation:

Patient should not exercise just prior to the test.

Collection Instructions:

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