100% Correct Verified Answers |Graded A+
Drugs of choice for EARLY treatment of HF? - ANSWER > ACE inhibs
> ARBs
> BBs; ie. bisoprolol, extended-release metoprolol tartrate, carvedilol
> Loop D. ie. furesemide
> Aldosterone inhibs ie. spirinolactone = as HF progresses.
Class I HF - ANSWER No limitation of physical activity
Class II HF - ANSWER regular activity results in fatigue, dyspnea or other symptoms
Class III HF - ANSWER marked limitation of physical activity
Class IV HF - ANSWER Symptoms @ rest or w/ no activity at all.
inotropic - ANSWER drugs that affect contractility
dromotropic - ANSWER drugs that affect the conduction of electrical impulses through the heart
chronotropic - ANSWER drugs that affect the heart rate
Inotropy: Mechanism of Action - ANSWER inhibits Na-K+ ATPase --> indirect inhibition of Na/Ca
exchange = increased Ca+ in the cells, thus increasing contractility of the heart
, Indications for Inotropy - ANSWER HF & Dysrhythmias (A fib + A flutter)
Adverse effects of Inotropic drugs: early signs - ANSWER -nausea
-vomiting
-anorexia
Adverse effects of inotropic drugs: late signs - ANSWER -arrhythmias
-AV heart block
-blurry yellow vision
-HYPERkalemia
what drug class is Digoxin (Lanoxin)? - ANSWER cardiac glycoside
Digoxin antidote - ANSWER Digoxin immune Fab (Digibind)
T/F: Assess apical + radial pulses for a full minute before giving a BB or Digoxin for HF? -
ANSWER True.
why should a pt avoid taking high fibre foods (ie. Bran) when taking digoxin? - ANSWER b/c fibre
ie.bran binds to digoxin; lowers digoxin levels
what should you do if the (adult) pts HR is less than 60 or greater than 100 before being given
the HF drug? - ANSWER hold the dose & notify the prescriber.
effect of HYPOkalemia w/ digoxin? - ANSWER increases risk of toxicity
treatment for HYPERkalemia associated w/ digoxin toxicity? - ANSWER B.I.G.K