Nokea
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.
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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.
A transfusion using blood from one?s own blood is a(n) ___ transfusion, which is the best defense against a transfusion reaction.
Correct Answer: autologous
Rationale: An autologous transfusion uses blood from one?s own body.
The nurse arrives at the bedside of a patient who has had a unit of packed cells infusing in his right arm for 35 minutes. He is complaining of chills, itching, and shortness of breath. What will be the nurse's initial action?
- A. Cover with a warm blanket.
- B. Take the patient's temperature.
- C. Elevate the head of the bed.
- D. Stop the transfusion and continue with saline.
Correct Answer: D
Rationale: Moderate reactions, resulting in fever, chills, urticaria, and wheezing, occur after the first 30 minutes of administration. In the event of a moderate reaction, stop the transfusion, continue with saline, and notify the health care provider. Elevation of the head, taking vital signs, and covering with a warm blanket are not wrong, but are not of primary importance.
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.
In which time frame must blood be transfused within once it has been removed from refrigeration?
- A. 2 hours
- B. 4 hours
- C. 6 hours
- D. 3 hours
Correct Answer: B
Rationale: Blood must be administered within 4 hours after removal from refrigeration, and blood components within 6 hours of removal.