How do antiplatelet medications work?
Stimulate the plasmin system.
Alter the formation of the platelet plug.
Initiate the clotting cascade.
Interfere with the clotting cascade.
The Correct Answer is B
Choice A rationale
Antiplatelets do not stimulate the plasmin system, which is involved in breaking down clots.
Choice B rationale
Antiplatelet medications work by altering the formation of the platelet plug, preventing platelets from clumping together.
Choice C rationale
They do not initiate the clotting cascade, which is a separate process from platelet aggregation.
Choice D rationale
They do not interfere with the clotting cascade directly but affect platelet aggregation. .
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Itching and rash are not common adverse effects associated with calcium-channel blockers. They are more commonly related to other classes of medications.
Choice B rationale
Hypertension and tachycardia are not typical adverse effects of calcium-channel blockers. These medications are usually prescribed to treat hypertension and can actually cause a reduction in heart rate.
Choice C rationale
Nausea and diarrhea are possible side effects of many medications, but they are not specific adverse effects commonly linked to calcium-channel blockers.
Choice D rationale
Headache and dizziness are common adverse effects of calcium-channel blockers. These medications can cause vasodilation, leading to headaches and a decrease in blood pressure, which may result in dizziness, especially when standing up quickly. .
Correct Answer is C
Explanation
Choice A rationale
Working with animals is typically done in preclinical trials before phase I studies in humans and is not part of phase III drug evaluation studies.
Choice B rationale
Conducting research to determine the effectiveness of the drug is part of phase II studies. Phase III studies focus more on confirming effectiveness, monitoring side effects, and comparing it to commonly used treatments.
Choice C rationale
Monitoring and observing patients closely for adverse effects is a key responsibility in phase III drug evaluation studies. These studies involve a larger patient population to gather comprehensive safety and efficacy data.
Choice D rationale
Choosing appropriate patients to be involved in the study is primarily the responsibility of researchers and clinicians during the earlier phases of drug development, such as phase I and phase II studies.
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