Which cell has a role in developing cell-mediated immunity?
T cells
B cells
None of the above
All of the above
The Correct Answer is A
Choice A reason: T cells, including cytotoxic and helper T cells, drive cell-mediated immunity by directly attacking infected cells and coordinating immune responses. They target intracellular pathogens and tumors, forming the core of cellular immunity, making this the correct choice.
Choice B reason: B cells mediate humoral immunity, producing antibodies against extracellular pathogens. While critical for immune defense, they do not directly drive cell-mediated responses, which rely on T-cell activity, making this incorrect for cell-mediated immunity.
Choice C reason: “None of the above” is incorrect, as T cells play a central role in cell-mediated immunity. Their functions, like cytotoxicity and cytokine production, are essential for this immune response, making this an invalid choice.
Choice D reason: “All of the above” is incorrect, as only T cells, not B cells, are primarily responsible for cell-mediated immunity. B cells support humoral immunity, not the cellular response driven by T cells, making this an incorrect choice.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Aspirin inhibits TXA2 synthesis, reducing platelet adhesion and clotting. This is a true mechanism of aspirin’s antiplatelet effect, so it’s incorrect as the exception.
Choice B reason: Aspirin reduces prostaglandin production, which decreases platelet aggregation. This is a valid antiplatelet mechanism, so it’s incorrect for the action aspirin does not perform.
Choice C reason: Aspirin does not inhibit fibrinogen-to-fibrin conversion; this is part of the coagulation cascade, not platelet function. Aspirin targets platelets, making this the correct action it doesn’t perform.
Choice D reason: Aspirin inhibits ADP-induced platelet aggregation, minimizing plug formation. This is a true antiplatelet effect, so it’s incorrect as the action aspirin does not do.
Correct Answer is ["B","C","D","E"]
Explanation
Choice A reason: Hydration is a treatment, not a complication. Rhabdomyolysis, hyperkalemia, and AKI are complications of crush injuries, with kidney function monitoring essential. This describes an intervention, not a complication, so it’s incorrect.
Choice B reason: Rhabdomyolysis is likely from severe muscle trauma in a crush injury, releasing myoglobin and electrolytes, risking kidney damage. This matches the patient’s injury, making it a correct complication.
Choice C reason: Electrolyte monitoring, especially potassium, is critical due to hyperkalemia risk from muscle breakdown. This can cause arrhythmias, making it a correct selection for complications.
Choice D reason: Acute kidney injury (AKI) is common in rhabdomyolysis, as myoglobin damages kidneys. Given the crush injury, AKI is likely, making this a correct complication.
Choice E reason: Monitoring kidney function (creatinine, BUN, urine output) detects AKI from rhabdomyolysis. This ensures timely intervention, making it a correct choice for complications.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.