Sickle Cell Test

A. Blood sample collection, addition of sodium metabisulfite, incubation, observation (correct)

B. Blood sample collection, observation, addition of sodium metabisulfite, incubation

D. Addition of sodium metabisulfite, incubation, blood sample collection, observation

C. Observation, blood sample collection, addition of sodium metabisulfite, incubation

D. To reduce the amount of oxygen in the blood sample (correct)

C. To change the pH of the blood sample

B. To lyse the red blood cells

A. To prevent contamination of the blood sample

B. It rules out the possibility of sickle cell anemia

C. It indicates the patient has a carrier status for sickle cell anemia

D. It is an unrelated finding with no diagnostic value

A. It confirms the presence of sickle cell anemia (correct)