A nurse is caring for a client who had an anaphylactic reaction after a blood transfusion. The nurse reviews the literature to further understand antibody-mediated immunity (AMI). Which of the following information should the nurse confirm about AMI?
AMI is mediated by antibodies produced by B-lymphocytes.
AMI defends only against viral infections.
Humoral immune response is mediated by T-lymphocytes.
AMI involves phagocytic natural killer cells.
The Correct Answer is A
A. Antibody-mediated immunity (AMI) is primarily the result of antibodies produced by B-lymphocytes in response to antigens. This immune response is essential for protecting the body against pathogens and is particularly important in transfusion reactions.
B. While AMI is crucial in defending against various infections, it is not limited to viral infections; it also plays a significant role in protecting against bacterial infections and other types of pathogens.
C. The humoral immune response is mediated by B-lymphocytes, while T-lymphocytes are primarily involved in cell-mediated immunity, which targets infected cells and regulates immune responses.
D. Phagocytic cells, such as macrophages and neutrophils, are involved in the innate immune response, not directly in antibody-mediated immunity. Natural killer (NK) cells are part of the innate immune system and target virus-infected cells and tumors, but they do not mediate AMI.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Night sweats are a common symptom in clients with AIDS, often related to opportunistic infections like tuberculosis or certain types of cancers.
B. In HIV/AIDS, WBC counts are often decreased due to immune suppression, so an increased WBC count is not typical.
C. Decreased, rather than increased, hemoglobin levels are often seen in AIDS due to anemia of chronic disease.
D. Weight loss, rather than gain, is more commonly associated with AIDS due to malnutrition and wasting syndrome.
Correct Answer is A
Explanation
A. A GCS score of 3 for eye opening indicates that the client does not open their eyes spontaneously, while a score of 5 for best verbal response suggests that they can respond verbally, likely indicating that they can open their eyes when spoken to or when commanded. This conclusion aligns with the score of 5 for verbal response, which indicates a higher level of responsiveness.
B. This option is incorrect because a score of 5 for best verbal response indicates that the client can produce vocal sounds, meaning they are capable of making verbal responses.
C. While the eye opening score of 3 suggests significant impairment, the overall GCS score of 13 (3 + 5 + 5) does not support the conclusion that the client is completely unconscious. The presence of verbal and motor responses indicates some level of consciousness.
D. This conclusion is incorrect because a score of 5 for best motor response suggests that the client can follow commands and respond to stimuli, which is inconsistent with being unable to follow commands.
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