After the nurse administers IV atropine to a client with symptomatic sinus bradycardia, which of the following findings would best indicate that the medication has been effective in reversing the bradycardic episode?
A decrease in the premature contractions
Increased heart rate to within normal limits (60-100 bpm)
Resolution of accompanying symptoms such as dizziness or weakness
Improvement in blood pressure readings
The Correct Answer is B
A. A decrease in premature contractions is not the primary goal of atropine; it specifically targets bradycardia.
B. Atropine works by blocking parasympathetic stimulation to the heart, which increases the heart rate. An increase in heart rate to within normal limits (60–100 bpm) directly indicates the medication is effective.
C. Resolution of symptoms may occur as a result of the increased heart rate, but it is an indirect measure and not the primary indicator of drug effectiveness.
D. Blood pressure may improve secondary to heart rate normalization, but it is not the most direct or immediate indicator of atropine efficacy.
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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