A form of angina which develops at rest in response to spasm of a coronary artery would respond best to
deep breathing exercises.
calcium channel blocker.
isoproterenol.
beta blockers.
The Correct Answer is B
A. Deep breathing exercises may help reduce anxiety but do not relieve coronary artery spasm.
B. Calcium channel blockers relax smooth muscle in the coronary arteries, relieving vasospasm and preventing episodes of variant (Prinzmetal) angina, which occurs at rest.
C. Isoproterenol is a beta-agonist that increases heart rate and myocardial oxygen demand, which could worsen angina.
D. Beta blockers reduce heart rate and contractility but are less effective in relieving coronary artery spasm and may worsen vasospasm in some cases.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Oxygen may be indicated, but beta-adrenergic blockers are not the highest priority for immediate management of acute chest pain in the emergency setting.
B. Thrombolytics are only indicated for confirmed ST-elevation myocardial infarction (STEMI), and NSAIDs are not appropriate for acute cardiac pain.
C. Clopidogrel may be used in some cases, and furosemide is for fluid overload; however, this combination does not address immediate myocardial ischemia.
D. Nitroglycerin, aspirin, and oxygen are the priority interventions for acute chest pain suggestive of myocardial infarction. Oxygen improves oxygenation, nitroglycerin reduces myocardial oxygen demand, and aspirin inhibits platelet aggregation to limit clot progression.
Correct Answer is D
Explanation
A. Pain that is relieved by nitroglycerin is more characteristic of angina pectoris, not necessarily an acute myocardial infarction.
B. Pain that worsens with arm movement is more typical of musculoskeletal causes.
C. Pain that increases with deep breathing is more consistent with pleuritic pain, such as in pericarditis or pulmonary embolism.
D. Chest pain from an acute myocardial infarction is typically persistent, often lasting longer than 30 minutes, and may not respond to rest or nitroglycerin. This prolonged, unrelieved pain is a key clinical indicator of AMI.
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