Nokea
The nurse stresses that when a person produces his own antibodies against a specific antigen, that process of immunity is ___ immunity
Correct Answer: active acquired
Rationale: When a person?s immune system produces specific antibodies against an antigen, that process is an active acquired immunity.
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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.
A patient is undergoing immunotherapy on a perennial basis. With this form of treatment, the patient receives treatment scheduled in which way?
- A. Larger doses each week
- B. Higher concentrations each week
- C. Increased amounts and concentrations
- D. The same amount and concentration each visit
Correct Answer: C
Rationale: Perennial therapy is most widely accepted, because it allows for a higher cumulative dose, which produces a better effect. Perennial therapy begins with a diluted dose of the allergen that is increased progressively each week.
Which disease results from one's own immune system attacking the body?
- A. Lupus erythematosus
- B. Scleroderma
- C. Polio
- D. Rheumatoid arthritis
- E. Thrombocytopenic purpura
- F. Osteoarthritis
Correct Answer: A,B,D,E
Rationale: Autoimmune diseases such as systemic lupus erythematosus, scleroderma, myasthenia gravis, thrombocytopenic purpura, rheumatoid arthritis, and Guillain-Barré syndrome are treated with plasmapheresis.
In which patient will the nurse be most concerned about immunodeficiency disorder?
- A. The patient taking desensitization injections (immunotherapy)
- B. The patient on long-term radiation therapy for cancer
- C. The overweight patient
- D. The patient recently diagnosed with lupus erythematosus
Correct Answer: B
Rationale: Radiation destroys lymphocytes and depletes the stem cells. Prolonged radiation depresses the bone marrow.
Which action will the nurse take when a patient is receiving increasing strength of the dose in the injections for immunotherapy?
- A. Observe the patient for at least 20 minutes after administration.
- B. Take the vital signs every 10 minutes for an hour.
- C. Have the patient lie down quietly for an hour.
- D. Place a warm compress on the area to speed its absorption.
Correct Answer: A
Rationale: The patient should be observed for 20 minutes after the increased dose of the allergen. If anaphylaxis is going to occur, it will do so within that time frame.