Nokea
Which concern is a major negative effect of cell-mediated immunity?
- A. Depression of bone marrow
- B. Rejection of transplanted tissue
- C. Activation of the T cells
- D. Stimulation of the B cells
Correct Answer: B
Rationale: Cell-mediated immunity has the negative effect of rejection of transplanted tissue. Activation of T cells and stimulation of B cells are the positive basis of the cell-mediated immunity.
You may also like to solve these questions
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.
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 outlines for a patient who has asthma attacks from pollen that the process from exposure to symptoms follows a systematic sequence. Which change is the last physiologic responses of an allergic asthma attack?
- A. Release of histamine
- B. Edema
- C. Vasodilation
- D. Activation of mast cells
- E. Bronchospasm
- F. Exposure to pollen
Correct Answer: E
Rationale: The mast cells in the lungs are activated by the exposure to pollen. Histamine is released causing vasodilation, edema, and bronchospasm for the asthmatic.
Which term is used to describe transplantation of tissue between members of the same species?
- A. Allograft
- B. Autograft
- C. Isograft
- D. Homograft
Correct Answer: A
Rationale: The allograft is the transplantation of tissues between members of the same species, such as a graft for full-thickness burns.