Vasopressor Drugs Flashcards
Dobutamine trade name?
Dobutrex
Dobutamine classifications?
Inotropics, Adrenergics
Dobutamine actions?
Stimulates beta-1 receptors with minor effect to heart rate or peripheral blood vessels. Stimulates beta-2 receptors causing vasodilation. Increased cardiac output without increased heart rate significantly.
Dobutamine onset/duration?
1-2 min / brief <1
Dobutamine indications?
Cardiogenic shock, hypotension, low cardiac output, reduced perfusion
Dobutamine contraindications?
Hypersensitivity;
use with caution in patients with a-fib, MI, history of HTN
Dobutamine side effects?
Headache, dysrhythmias, tachycardia, hypertension, nausea, and vomiting
Dobutamine route of administration?
IV
Dobutamine adult dose?
2.5-15 mcg/kg/min;
titrate to response
(max dose 40 mcg/kg/min)
Dobutamine peds dose?
same as adult dose
Dobutamine supply?
250mg/20mL
Dopamine trade name?
Dopastat, Intropin
Dopamine classifications?
Endogenous catecholamine, sympathomimetic
Dopamine actions?
With a low dose (1-2 mcg/kg/min), dopaminergic receptors are stimulated which causes vasodilation of the renal and mesenteric arteries that increase the force of contraction of the heart to increase BP. With a dose above 10mcg/kg/min, there is a stimulation of the alpha receptors in the systemic arteries that cause vasoconstriction and increased PVR.
Dopamine onset/duration?
2-4 min/ 10-15 min
Dopamine indications?
Hemodynamically significant hypotension in the absence of hypovolemia. Symptomatic bradycardia as a second line medication.
Dopamine contraindications?
Tachydysrhythmias, ventricular fibrillation, hypovolemia
Dopamine side effects?
Hypertension, V-fib, increased myocardial oxygen demand, headache, anxiety, nausea, vomiting
Dopamine route of administration?
IV infusion