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USMLE
Cardiology II
The nurse is planning care for a client with hypertropic cardiomyopathy. The physician orders a dopamine (Intropin) IV infusion to start at 3 mcg/kg per minute and titrate to keep the BP more than 100 systolic. The nurse should:
Explanation
ExplanationDopamine is a positive inotrope, which is contraindicated in the treatment for hypertrophic cardiomyopathy. The left ventricular outflow tract will be further obstructed by increasing the myocardial contraction of the hypertrophic ventricle. Dopamine less than 3 mcg/kg per minute has a dopaminergic effect, which increases urine output. Weighing the client is needed for dosing.
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