ATI Pharmacology Quizlet Related

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A healthcare provider is administering a Dopamine infusion at a low dose to a client who has severe heart failure. Which of the following findings is an expected effect of this medication?

  • A. Lowered heart rate
  • B. Increased myocardial contractility
  • C. Decreased conduction through the AV node
  • D. Vasoconstriction of renal blood vessels
Correct Answer: B

Rationale: Dopamine, when administered at a low dose, acts on beta1 receptors in the heart, leading to increased myocardial contractility. This positive inotropic effect results in improved cardiac output, which is beneficial for a client with severe heart failure. Dopamine does not typically cause lowered heart rate, decreased conduction through the AV node, or vasoconstriction of renal blood vessels at low doses.