Question

1. Which of the following occurs upon a secondary exposure to an allergen such as pollen? (Assume sensitization has already occurred.)

IgE antibodies are produced by plasma cells.

Cytotoxic T cells lyse plasma cells.

Degranulation of mast cells.

Complement lyses mast cells.

2. In which of the following cases is RhoGAM not given to the RH^- mother in order to prevent hemolytic disease of the newborn?

after amniocentesis or chorionic villus sampling

within 72 hours of delivery

subsequent to miscarriage or abortion

following an episode of vaginal bleeding during pregnancy

around the 8th week of pregnancy

3. A drawback of all inactivated vaccines is that

they are quickly cleared from the body, limiting antigen exposure.

they may cause secondary transmission from the immunized person to another host.

they may mutate to a more virulent form.

they are likely to cause disease in immunocompromised hosts.

they require complex genetic engineering techniques to produce.

4. Which of the following types of hypersensitivity reactions involves production of antibodies? To be marked correct, you'll need to select all applicable statements, as there may be more than one correct answer.

Type II hypersensitivity

Type IV hypersensitivity

Type I hypersensitivity

Type III hypersensitivity

5. Which of the following would be an appropriate form of treatment for a patient suffering from serum sickness following administration of botulism antitoxin? To be marked correct, you'll need to select all applicable statements, as there may be more than one correct answer.

Prednisone (a corticosteroid)

Valproate (an anticonvulscent)

Administration of more antitoxin

Ibuprofen (a non-steroidal anti-inflammatory drug)

6. The aspect of the immune response that vaccines are based on is

stimulation of phagocytosis.

protection of the normal microbiota.

inflammation and fever.

production of memory cells and high antibody titers from pathogen exposure.

stimulation of cellular, as opposed to humoral, immunity.

Answer 1