Inotropic Agents Flashcards
1
Q
Name the common 2 beta, alpha and 3 mixed agonists?
Mechanism of alpha agnonists?
Mechanism of beta agonists?
A
Phenylephrine (Alpha agonist)
Metaminol (alpha agonist)
Ephedrine (beta agonist)
Dobuatmine (beta agonist)
Noradrenaline, dopamine, and adrenaline (mixed)
Alpha 1-adrenergic receptor agonist which causes systemic arteriole vasoconstriction, thereby increasing mean arterial blood pressure.
Beta 1 receptor agonist which acts on the myocardium to increase myocardial contractility and heart rate.
2
Q
Actions of ephedrine?
A
Rise in HR and contractility —> rise in BP
3
Q
Actions of phenylephrine?
A
Rise in BP by vasoconstriction
4
Q
Actions if metaminol?
A
Rise in BP by vasoconstriction
