A client is having frequent premature ventricular contractions with a B/P 88/60 mm Hg.
You call the doctor and anticipate receiving an order to
administer diltiazem 5 mg IV push.
administer adenosine 6 mg IV push.
administer epinephrine 1 mg IV push.
administer amiodarone 150 mg IV push.
The Correct Answer is D
A. Diltiazem is a calcium channel blocker used primarily for supraventricular tachycardias and atrial fibrillation; it does not treat ventricular arrhythmias effectively.
B. Adenosine is used for narrow-complex supraventricular tachycardia and is not effective for PVCs.
C. Epinephrine is used in cardiac arrest situations, not for isolated PVCs in a hypotensive patient.
D. Amiodarone is an antiarrhythmic that is effective in treating ventricular arrhythmias, including frequent PVCs, and is appropriate for a patient with hypotension who is at risk of progression to more serious ventricular dysrhythmias.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Morphine does not raise systemic vascular resistance; it primarily causes vasodilation.
B. Morphine reduces systemic and pulmonary vascular resistance (vasodilation), decreases preload and afterload, reduces cardiac workload, decreases myocardial oxygen demand, and alleviates pain, making it beneficial in acute MI.
C. Morphine does not increase myocardial contractility; increasing contractility would raise oxygen demand, which is undesirable in MI.
D. Morphine decreases venous return rather than increasing it, which helps reduce cardiac workload.
Correct Answer is A
Explanation
A. Dyspnea, unusual fatigue, and diaphoresis are classic early signs and symptoms of ACS and may indicate myocardial ischemia or infarction.
B. Peripheral cyanosis and hypertension are not typical presenting symptoms of ACS and may indicate other cardiovascular issues.
C. Hypotension and cyanosis can occur in severe ACS but are not the most common initial signs.
D. Peripheral cyanosis and hypertension are less specific for ACS; dyspnea alone is insufficient without other classic symptoms.
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