Question 1

When is the Western Blot test used in donor testing?

Accepted Answer

A)  To confirm antibody-positive hepatitis C virus tests 
B)  To confirm positive serological test for syphilis 
C)  To confirm positive HIV antibody test results 
D)  To screen for human T-cell lymphotropic virus-I/human T-cell lymphotropic virus-II in blood donors

Question 2

Cytomegalovirus infection from blood units can be avoided by:

Accepted Answer

A)  leukoreduction. 
B)  washing. 
C)  freezing and thawing. 
D)  nucleic acid testing.

Question 3

If clinically significant red cell antibodies are found in donor units:

Accepted Answer

A)  platelet and fresh frozen plasma cannot be transfused. 
B)  red blood cells can be used if the antibody interpretation is indicated on the label. 
C)  the unit must be discarded and the donor permanently deferred. 
D)  red blood cells must be washed before transfusion.

Question 4

What is the advantage of testing donor blood using nucleic acid test methods?

Accepted Answer

A)  Detection of small amounts of the virus 
B)  Reduction of costs involved in testing 
C)  Quicker and easier to perform than other methods 
D)  All of the above

Question 5

A positive serological test for syphilis indicates:

Accepted Answer

A)  that antibodies to Treponema pallidum are present. 
B)  past or present venereal disease infection. 
C)  the possibility of an infection with Treponema pallidum. 
D)  that antigens associated with venereal disease are present.

Exam 10: Testing of Donor Blood

When is the Western Blot test used in donor testing?

Cytomegalovirus infection from blood units can be avoided by:

If clinically significant red cell antibodies are found in donor units:

What is the advantage of testing donor blood using nucleic acid test methods?

A positive serological test for syphilis indicates: