Module 5: ABO system

When was ABO first discovered:

What is Landsteiner's law:

When can anti-A1 form:

Why is the ABO system unique:

Naturally occuring antibodies are also called:

There are two potential precursors on the red blood cell for ABH which vary:

What are the genes of the H system:

What is the H antigen:

When is the H substance formed on red blood cells:

When is the H substance formed in the plasma:

Order of diminishing quantity of the amount of H antigen on red cells:

What is the role of the Se gene:

What percentage of the population are secretors:

If a person is a secretor and is blood group O, what substances will be in the secretions:

If a person is a secretor and is blood group A, what substances will be in the secretions:

If a person is a secretor and is blood group B, what substances will be in the secretions:

If a person is a secretor and is blood group AB, what substances will be in the secretions:

What is the Bombay phenotype:

What is the symbol for Bombay:

Whant antibodies do Bombay individuals form

What is the definitive test to confirm Bombay individuals:

What is important for patients who are AB positive:

What is the difference between A1 and A2 subgroup:

How do you differentiate between A1 and A2:

The direct gene products in the ABO system are:

True or false: Bombay phenotype has a non-red cell stimulated anti-H:

True or false: Bombay phenotype inherits the h gene in the homozygous state:

True or false: Bombay phenotype may have inherited an A or B gene, though A and B antigens are not produced

True or false: Bombay phenotype can receive blood from a group O person

True or false: Bombay phenotype can have A or B transferase enzymes

What are the controls used for anti-A:

What are the controls used for anti-B:

What are the controls used for A1 cells:

What are the controls used for A2 cells:

What is the frequency of A1 and A2:

What are the quality control of the A subgrouping reagents:

True or false: Antibodies in the ABO system may be non RBC stimulated

True or false: Antibodies in the ABO system may be RBC stimulated

True or false: Antibodies in the ABO system may cause transfusion reactions

True or false: Antibodies in the ABO system may cause HDN

True or false: The reverse grouping in ABO grouping should always agree with the forward grouping

True or false: The reverse grouping in ABO grouping tests for the antigens present on the RBC

True or false: The reverse grouping in ABO grouping demonstrates the reciprocal relationship between antigen and antibodies in the system

True or false: The reverse grouping in ABO grouping must include the use of anti-A,B