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 A
Explanation
Choice A rationale
Assessing pulses and blood pressure is crucial before administering an antiarrhythmic agent because these drugs can affect heart rate and blood pressure, requiring close monitoring to prevent adverse effects.
Choice B rationale
While assessing breath sounds is important in overall patient care, it is not the priority before administering antiarrhythmic agents as these drugs primarily affect the cardiovascular system.
Choice C rationale
Assessing mental status is important in patient care, but it is not the priority before administering an antiarrhythmic agent, as these medications primarily influence cardiovascular parameters.
Choice D rationale
Assessing urine output is vital for monitoring kidney function and fluid balance, but it is not the priority before administering an antiarrhythmic agent, which mainly affects heart rhythm and blood pressure.
Correct Answer is A
Explanation
Choice A rationale
Oral morphine typically reaches peak activity at around 45 minutes after administration. This allows time for the medication to be absorbed through the gastrointestinal tract and enter the bloodstream to provide pain relief.
Choice B rationale
10 minutes is too short for oral morphine to reach peak activity. This timeframe is more consistent with intravenous administration, which allows for rapid onset of action.
Choice C rationale
30 minutes is a bit too short for oral morphine to reach peak effect, although some patients may start to feel relief. However, peak plasma concentrations generally occur closer to 45-60 minutes.
Choice D rationale
While morphine can continue to have effects up to 60 minutes and beyond, the peak activity is typically observed around the 45-minute mark. Waiting for 60 minutes may underestimate the peak timeframe.
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