Vasopressure Drugs Flashcards
(54 cards)
Dobutamine trade name
Dobutrex
Dobutamine generic name
Dobutamine
Dobutamine classification
Inotropics, Adrenergics
Dobutamine actions
Stimulates beta 1 adrenergic receptors with minor effect on heart rate or peripheral blood vessels. Stimulates beta 2 adrenergic receptors causing vasodialation. Increased cardiac output without increased heart rate significantly.
Dobutamine onset and duration
1-2 minutes. Brief <1 minute
Dobutamine indications
Cardiogenic shock, hypotension, low cardiac output, reduced perfusion.
Dobutamine contraindications
Hypersensitivity, use with caution in pts with Afib, MI, history of HTN
Dobutamine side effects
Headache, dysrythmias, tachy, HTN, n&v
Dobutamine route
IV
Dobutamine dose adult
2.5-15mcg/kg/min. Titrate to response. Max dose 40mcg/kg/min.
Dobutamine peds dose
Same as adult
Dobutamine supplied
250mg/20ml
Dobutamine special considerations
Pret Cat: not established.
Toxicity overdose, only treatment is reduce kr DC use.
Dopamine trade name
Dopastat, Intropin
Dopamine generic name
Dopamine
Dopamine actions
Dopamine is vasopressive agent that exhibits various resoonse. Depending on the dose administrated. Low dose (1-2mcg/kg/min) stimulates, dopaminergic receptors that cause vasodilatation of the renal mesentric arteries that increase the force of contraction of the heart to increase blood pressure. Above 10mcg/kg/min there is stimulation of alpha receptors in the systemic arteries that cause vasocontriction and increased peripheral vascular resistance.
Dopamine onset and duration
2-4 minutes/ 10-15 minutes
Dopamine indications
Hemodynamically significant hypotension in the absence of hypovolemia. Symptomatic bradycardia as a second line medication.
Dopamine contraindications
Tachydysrhthmias, ventricular fibrillation, hypovolemia
Dopamine side effects
HTN, Vfib, increased myocardial oxygen demand, headache, anxiety, N&V
Dopamine route
Iv infusion
Dopamine dose adult
2-20mcg/kg/min usually started at 5-10mcg/kg/min and titration to systolic blood pressure of 90 ir 100
Dopamine dose peds
2-20mcg/kg/min titration to pt response
Dopamine drip mix
400 MG in 500ml NS or 2pp MG in 250 ml NS to give 800 mcg/mL; 400mg in 250mL to give 1600mcg/mL