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WorksheetsImmunohematology - Blood grouping tests, part 1
Total questions: 16
Worksheet time: 16mins
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.
What could cause RhD unclarity in the assays? (select one or more)
A double population
Too large sample quantity
The C3d factor of the complement system
A D variant
Why is antibody screening made?
To check the blood group
To identify the antibodies
To find the red cell antibodies that are significant in blood transfusion
To find the red cell antigens in the patient
How many screening cells are usually used in antibody detection?
5
11
15
22
The Type and Screen policy is not as safe as the compatibility test policy
True
False
Blood group is checked in each compatibility test sample
True
False
A card that detects the DVI category is often used in the blood group determination of newborns
True
False
