Pearls Sample Question
Pharmacological and Parenteral Therapies, Reduction of Risk Potential, Physiological Adaptation
5/4/2017 10:16:03 AM
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If a patient who has a BP of 90/60 mm Hg and little urine output, is started on renal dose dopamine. Which of the following doses should be selected?
Select Your Answer:
1. 2-5 mcg/kg/min
2. 5-10 mcg/kg/min
3. 10-15 mcg/kg/min
4. 1 mg/kg/min
Dopamine only is administrated intravenously and works both as an inotrope and vasopressor agent.
At 2-5 mcg, dopamine is considered renal dose and acts by dilating the renal blood vessels and increasing blood flow.
At 5-10 mcg, dopamine has a positive inotropic effect and also stimulates the heart rate through its beta-agonist activity.
At very high doses, dopamine acts as an alpha-agonist and causes vasoconstriction and increases systemic vascular resistance.
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