Immunohematology - Blood grouping tests, part 1

Determining the ABO blood group requires

• one determined result, as long as the ABO logic is consistent

• at least two consistent results

• at least three consistent results

• at least four consistent results

What are blood transfusion tests based on?

• On testing the morphology of red blood cells

• On the determination of immunoglobulins

• On the reactions between antibody and red blood cell antigen

• On the rejection between antibody and red blood cell antigen

Reagents used in blood transfusion tests (select one or more)

• are antibodies made with biotechnology

• are antibodies of human origin

• are monoclonal IgM class antibodies

• are antibodies of animal origin

What does the type and screen policy mean? (select one or more)

• A pre-transfusion compatibility test is not made.

• The blood group check and antiglobulin test are made before the blood transfusion.

• The blood group check and antibody screening are made before the blood transfusion.

• A pre-transfusion compatibility test is made.

How are adults’ ABO blood groups determined?

• By checking the red blood cell antigens

• By checking the antibodies in the serum

• By blood group genotyping

• By checking the red blood cell antigens and antibodies in plasma

How are children’s under six months old ABO blood groups determined?

• By checking the red blood cell antigens

• By blood group genotyping

• By checking the red blood cell antigens and antibodies in plasma

• By checking the antibodies in the serum

What examinations are usually done before a blood transfusion if not using the type and screen policy? (select one or more)

• ABORhD assay for two independent samples

• Compatibility test

• Antibody screening

• Antiglobulin test

What reagents are used to examine red blood cells in ABO blood group determination? (select one or more)

• A1 reagent red cells

• B reagent red cells

• Anti-A reagents

• Anti-B reagents

What reagents are used to examine plasma in ABO blood group determination? (select one or more)

• A1 reagent red cells

• AB reagent red cells

• O reagent red cells

• B reagent red cells

How can the reliability of the results be increased in blood group assays? (select one or more)

• By automated result reading and data transferring.

• By using two different persons in reading and writing the results.

• A different person determines and interprets the blood group from red cells and plasma.

• By determining the blood group in two different places.