The nurse recognizes that the rationale for the medical prescription of aspirin 81 mg PO daily and clopidogrel 75 mg PO daily for the client with coronary artery disease is that these medications:
Have analgesic properties without sedation
Can trigger vasodilation and improve blood flow
Improve contractility and decrease afterload
Inhibit platelet aggregation and clot formation
The Correct Answer is A
Choice A reason: Having analgesic properties without sedation is not the rationale for prescribing aspirin and clopidogrel for coronary artery disease. Aspirin and clopidogrel are antiplatelet drugs that prevent blood clots from forming in the arteries that supply the heart. They do not have significant analgesic or sedative effects.
Choice B reason: Triggering vasodilation and improving blood flow is not the rationale for prescribing aspirin and clopidogrel for coronary artery disease. Aspirin and clopidogrel do not directly cause vasodilation or increase blood flow. They work by reducing the stickiness of platelets and preventing them from clumping together and blocking the arteries.
Choice C reason: Improving contractility and decreasing afterload is not the rationale for prescribing aspirin and clopidogrel for coronary artery disease. Aspirin and clopidogrel do not affect the contractility or the afterload of the heart. They act on the blood vessels and the blood cells, not on the heart muscle. Contractility and afterload are influenced by other drugs such as beta-blockers, calcium channel blockers, and angiotensin-converting enzyme inhibitors.
Choice D reason: This is the correct answer. Inhibiting platelet aggregation and clot formation is the rationale for prescribing aspirin and clopidogrel for coronary artery disease. Aspirin and clopidogrel are antiplatelet drugs that interfere with the function of platelets, which are blood cells that help with clotting. By inhibiting platelet aggregation and clot formation, aspirin and clopidogrel reduce the risk of heart attack and stroke in people with coronary artery disease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C"]
Explanation
Choice A: Elevated troponins. This is a correct answer. Troponins are proteins that regulate the myocardial contractile process². They are released into the bloodstream when the myocardial cells are damaged by ischemia or infarction². Troponins are highly specific and sensitive indicators of myocardial injury². The normal range for troponin I is less than 0.03 ng/mL and for troponin T is less than 0.01 ng/mL².
Choice B: Decreased homocysteine levels. This is not a correct answer. Homocysteine is an amino acid that is involved in the metabolism of methionine². Elevated homocysteine levels are associated with an increased risk of cardiovascular disease, but they are not a direct marker of myocardial injury². The normal range for homocysteine is 5 to 15 micromol/L².
Choice C: Elevated CK-MB. This is a correct answer. CK-MB is one of the isoenzymes of creatine kinase, an enzyme that catalyzes the conversion of creatine to phosphocreatine, which is used for energy storage in the muscles². CK-MB is found mainly in the myocardium and is released into the blood when the myocardial cells are injured². CK-MB is a specific and sensitive marker of myocardial injury, but it is less specific than troponins². The normal range for CK-MB is 0 to 3 ng/mL².
Choice D: Decreased alkaline phosphatase (ALP).This is not a correct answer. ALP is an enzyme that is found in various tissues, such as the liver, bone, intestine, and placenta². ALP is not a marker of myocardial injury, and its levels are not affected by ischemia or infarction². The normal range for ALP is 30 to 120 U/L².
Choice E: Increased platelet count.This is not a correct answer. Platelets are blood cells that are involved in hemostasis and clot formation². Increased platelet count, or thrombocytosis, can be a sign of inflammation, infection, malignancy, or other conditions². Platelet count is not a marker of myocardial injury, and it does not reflect the extent of ischemia or infarction². The normal range for platelet count is 150,000 to 450,000 per microliter of blood².
Correct Answer is D
No explanation
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