Immunology Flashcards
1
Q
What are the lymphocyte categories?
A
B cells - bursa-equivalent cells
T cells - thymus-derived cells
2
Q
What is the structure of immunoglobulins?
A
2 identical light chains and 2 identical heavy chains
Between classes differ in size, charge, carbohydrate content, and amino acid sequence
3
Q
What determines the immunoglobin class?
A
Type of heavy chain
4
Q
What is the function of b-cells?
A
Present antigens to t-cells
5
Q
How many days after onset of symptoms is VZV IgG detectable?
A
4
6
Q
Chance of congenital CMV if maternal seroconversion occurs in pregnancy?
A
30%
7
Q
Which test is most useful for diagnosing acute CMV infection in mother?
A
CMV IgG avidity
8
Q
Which test is most useful for diagnosing acute CMV infection in mother?
A
CMV IgG acidity
