Which of the following is (are) true regarding type III hypersensitivity reactions? Select all that apply. (NCLEX/HESI/TEAS)
a. They involve IgG.
b. They involve IgM.
c. They are considered delayed reactions.
d. They include autoimmune disorders like multiple sclerosis.
e. They are rare compared with type I reactions.

Which antibodies will be found naturally in the serum of a person with blood type A, Rh⁺?

a. anti A, anti B, anti Rh

b. anti A, anti Rh

c. anti A

d. anti B, anti Rh

e. anti B

In which of the following scenarios would administering immunoglobulins be useful? Select all that apply. (NCLEX/HESI/TEAS)

a. To neutralize a toxin

b. To aid a patient who is immune compromised

c. After venom exposure

d. To block IgM from crossing the placenta

e. To protect a premature infant from respiratory syncytial virus

T helper cells activate B cells to become ________________, which make ________________.

Label the indicated parts of the antibody.

<IMAGE>

Which of the following would be recommended as a means to diagnose a type I sensitivity? Select all that apply. (NCLEX/HESI/TEAS)

a. Skin prick test

b. IgG titers

c. IgM titers

d. IgE titers

e. Histamine levels

Place the following steps in order for a neutralization test:

a. Incubate cell culture for a few days.

b. Add suspected infecting virus to the patient's serum.

c. Inspect cell culture for viral infection.

d. Extract serum from patient.

e. Mix patient serum with virus and add the mixture to a cell culture.

_________ is another name for antibodies.

An antibody's variable region:

1. Varies in amino acid sequence to allow different antibodies to bind different antigens.
2. Is located in the hinge and stem regions of an antibody.
3. Is a portion of the light chain of an antibody.
4. Is a portion of the heavy chain of an antibody.