A Heparinized Blood Sample Is Received in the Chemistry Laboratory

A heparinized blood sample is received in the chemistry laboratory.After centrifugation,the plasma appears markedly hemolyzed.If the hexokinase method is used in this lab to measure glucose,why should this specimen be re-collected?

A) Heparin interferes with the second enzyme in the hexokinase assay.
B) Hemoglobin competes with the chromogen for hydrogen peroxide and inhibits the hexokinase reaction.
C) Red blood cells contain phosphate esters and enzymes that interfere with the hexokinase assay.
D) There is no need for re-collection as neither hemolysis nor heparin interfere with the hexokinase assay.