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 C
Explanation
A. A score of 6 indicates a severe impairment in consciousness, not alertness and orientation.
B. A score of 6 does not indicate a stable neurologic status but rather severe brain injury or impairment.
C. Clients with a GCS of 6 typically need total care, as they are unable to perform self-care activities and may be unable to respond to commands.
D. While a GCS of 3 indicates deep coma, a score of 6 reflects severe impairment, though not necessarily a deep coma.
Correct Answer is ["B","D"]
Explanation
A. A turning schedule every 4 hours is insufficient; repositioning should ideally be done every 2 hours to prevent pressure injuries.
B. Reducing skin exposure to moisture helps maintain skin integrity, especially in areas prone to breakdown due to moisture accumulation.
C. Powder is not recommended as it can lead to skin irritation and potential breakdown.
D. Elevating heels with pillows relieves pressure on areas that are susceptible to pressure injuries in immobilized clients.
E. Massaging erythematous bony prominences can damage capillaries and increase the risk of pressure injury formation.
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