Nokea
What is B-cell proliferation dependent on?
- A. Presence of NK (natural killer) cells
- B. Complement system
- C. Antigen stimulation
- D. Lymphokines
Correct Answer: C
Rationale: Antigen stimulation is the sole focus of B-cell proliferation.
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Which symptom would be classified as a mild transfusion reaction?
- A. Orthopnea
- B. Tachycardia
- C. Hypotension
- D. Wheezing
Correct Answer: A
Rationale: Mild transfusion reaction signs and symptoms include dermatitis, diarrhea, fever, chills, urticaria, cough, and orthopnea.
Which substance is released by the T cells that stimulates the lymphocytes to attack an inflammation?
- A. Lymphokine
- B. Epinephrine
- C. B cells
- D. Histamine
Correct Answer: A
Rationale: Lymphokines help attract macrophages to the site of the inflammation.
If a nurse is sensitive to latex gloves, which potential food sensitivities might the nurse have developed?
- A. Peanuts
- B. Avocados
- C. Milk
- D. Bananas
- E. Tomatoes
- F. Melons
Correct Answer: B,D,E,F
Rationale: A person sensitive to latex may also be sensitive to certain foods, including avocados, kiwi, bananas, chestnuts, hazelnuts, tomatoes, and melons.
The nurse takes into consideration that when the antigen and antibody react, the complement system is activated. This results in which activity?
- A. toughens the cell wall.
- B. generates more T cells.
- C. attracts phagocytes.
- D. makes the antigen resistant.
Correct Answer: C
Rationale: The complement system is a group of plasma proteins that are dormant until there is an antigen-antibody interaction. The proteins destroy the cell membrane and attract phagocytes.
Which person is most at risk for having a reduced number of T-cells?
- A. 26 year old receiving a second desensitization injection
- B. 35 year old starting back on birth control tablets
- C. The 52 year old started on a new series of Pyridium for cystitis
- D. The 84 year old receiving penicillin for an annually recurring respiratory infection
Correct Answer: D
Rationale: The 84 year old with the deteriorated immune system is at risk for having a reduced number of T-cells.