Cardiac Drugs Flashcards
How does Lidocaine work?
suppresses ventricles by decreasing automaticity
What arrthymias does Lidocaine treat?
treats VT and VF
What does Lidocaine inhibit
NA+
How does Epinephrine work?
peripheral vasoconstriction leads to increased coronary perfusion
What does Epinephrine treat?
VT, VF, Asystole, PEA, Symptomatic Bradycardia
What 2 things does Epinephrine cause?
Increase HR and contractility
How does Atropine work?
increases SA and AV node activity by blocking vagal reflex
When is Atropine used?
Brady, 1st AVB, Wencke, Arrest
What is the chronotropic and dromotropic affect of Atropine?
positive
How does Verapamil work?
blocks CA and NA
Verapamil causes
increased vasodilation
Verapamil is used to treat what 2 rhythms
SVT, RVR
The chronotropic and inotropic affects of Verapamil are
negative
What 2 affects does Isuprel have on the body?
control brady and increase CO
What does Amiodarone treat?
AT, VT, VF, and SVT
Direct Arteriolar Vasodilators
relax arterioles
Nitroprusside Sodium is a
vasodilator
Nitroprusside Sodium (Nipride) is used for
hypertensive emergencies and LV failure
Nitrates are a
venodilator
Nitrates work by
relaxing the smooth muscles and decreasing blood flow
Acute angina preferrably is treated with
Nitrates
Examples of Nitrates are
Nitroglycerine and Isosorbide
Vasodilators do what 3 things?
lower BP
improve patency of coronary arteries
decrease work load
Vasodilators are used to mangage what 3 cardiac situations?
hypertension
CHF
CAD
Examples of vasodilators include
Nitrates
Nitroprusside Sodium
Direct Arteriolar vasodilators
4 Classes of Antihypertensives
Vasodilators
Alpha Adrenergic Blockers
Diuretics
Ace Inhibitors
3 Antiarrhythmic Types
NA Blockers
Beta Blockers
CA Blockers
Class 1 Antiarrhythmic example
Lidocaine