Medications Flashcards
Where are Alpha 1 and Alpha 2 receptors found and what do they do?
Alpha 1: smooth muscle of blood vessels. Vasoconstriction
Alpha 2: CNS and periphery. Inhibits sympathetic activity
Where are the Beta 1 and Beta 2 receptors located and what is there reaction?
Beta 1: Heart. Increases HR and contractility
Beta 2: bronchioles, skeletal muscle arteries. Bronchiole and smooth muscle relaxation
Phosphodiesterase II inhibitor example
Primacor
Vasodilator examples
Nitroprusside, Cardene, hydralazine
Vasopressors examples
Norepinepherine, dopamine, epinepherine, vasopressin
Inotrope examples
Dopamine, Dobutamine, Milrinone, digoxin
Chronotrope examples
Positive: dopamine, epinephrine, milrinone
Negative: BB
Dopamine receptors and use
D1 and D2 receptors
Vasodilation of renal and mesenteric blood flow can cause increase of contractility and vasoconstriction at high doses
Phenylephrine receptors and use
Alpha 1
Vasoconstriction
Norepinephrine receptors and uses
Strong alpha 1, weak beta 1
Vasoconstriction with weak increase in myocardial activity
Epinephrine receptors and uses
Alpha 1, beta 1 and 2
increase in HR, vasoconstriction, contractility, and bronchodilation
Vasopressin receptors and users
V1 and V2
Vasoconstriction