• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/58

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

58 Cards in this Set

  • Front
  • Back
extremely short acting agent (15 - 20 sec) administered IV for the control of atrioventricular (AV) nodal arrythmias
adenosine
moa:
-interact with specific G-protien coupled receptors
-inc K current in atria, sinus and AV node
-shorten AP duration
-hyperpolarization and slowing of normal automaticy
adenosine
used for tx of acute termination of re-entrant supraventicular tachycardia
adenosine
se: flushing and hypotension, which are short lived and do not limit use of agent
adenosine
long acting class III antiarrhythmic associated with pulmonary fibrosis, thyroid dysfunction and corneal micro deposits
amiodarone
anti-arrhythmic?
-used to tx ventricular tachycardia or fibrallation
-a structural analog of thyroid hormones
-ae: prolong PR, QT and QRS interval

-safe for afib and hf

-exerts non-competitive adrenergic block effect, blocks Na channels
amidarone , class II anti-arrhythmic, K channel blocker
used for the txmt of congestive hf, this agent contains TWO isomers, one with non-selective B blocking and one with a1 blocking activity
carvedilol
moa: inhibits oxygen radical mediated lipid peroxidation and reduce smooth muscle mitogenisis

-dec mortality
carvediolol
bile acid binding resins used in teh management of hyperlipidemia
cholestyramine
colestipol
colesevelam
prevent enterohepatic recycling thus diverting hepatic efforts to renewing bile acids instead of producing plasma lipids
cholestyramine
colestipol
colesevelam
these agents fxn to slow conduction velocity by slowing the rate and rise of action potential
Class IA antiarrhythmics
-quinidine
-procainamide
-dispramide
most common cardiac complication of
Class IA antiarrhythmics
-quinidine
-procainamide
-dispramide
prolonged QT interval
induces alpha adrenergic receptor block and vagal inhibitin

-given IV

ae: hypotension and sinus tachycardia
quinidine
ae of both quinidine and procainamide
lupus like syndrome
class of antiarrythmics which help maintain SA node rhythem after cardioconverstion for atrial fibrilation and may cause torsade de pointes arrhythmias (associated with diarrhear induced hypokalemia)
Class IA antiarrhythmics
-quinidine
-procainamide
-dispramide
fxn to dec the action potential duration by shorting the repolarization phase
class IB antiarrhythmics
-lidocane
-mexiletine
-tocainide
-phenytoin
2 oral antiarrhythmics with ae of fatal bone marrow aplasia and pulmonary fibrosis
mexiletine and tocainide
IV antiarrhythmic with toxicity of nystagmus, tremors, dysarthria and altered mental status
lidocaine toxicity
renally excreted class IB antiarrhythmic that can cause fatal bone marrow aplasia and pulmonary fibrosis
tocainide
group of antiarrhythmics used to tx ventricular arrhythmias associated with MI as well as digitoxin-induced arrhythmias
class IB antiarrhythmics
-lidocane
-mexiletine
-tocainide
-phenytoin
used for tx of refractory ventricular arrhythmias, as well as for rapid atrial arrhythmias associated with Wolf-parkinson-White syndrome
Class IC antiarrrhythmics
-felcainide
-propaffenone
antiarrhythmic that blocks Na, K, and Ca channels and prolongs PR, QRS, and QT intervals
class IC - flecainide
antiarrhythmic that blocks Na and K

-approved for maintainance of sinus rhythem in pt with supravetricular arrhythmias
class IC propafenone
function to slow conduction velocity in atrial and ventricular cells but do not affect teh action potential

-typically used as last resort , as their use is associated with drug induced arrhythmias

-can kill people with structural heart disase such as heart failure
Class IC antiarrrhythmics
-felcainide
-propaffenone
these agents dec teh automaticity of the pacemaker tissue of the heart, resulting in prolonged AV conduction and slower HR
class II antiarrhythmics
-propranolol
-esmolol
-carvediol
-metoprolol
-bisoprolol
moa: reduce magnitude of Ca and K current therefore, dec hr and inc AV conduction

ae: mask hypoglycemia, bronchospasms, impotence
class II antiarrhythmics
-propranolol
-esmolol
-carvediol
-metoprolol
-bisoprolol
moa:
1. inhibit cardiotoxicity of catecolamines
2. inc density of B1 receptors
3. dec neurohormonal activity
class II antiarrhythmics
-propranolol
-esmolol
-carvediol
-metoprolol
-bisoprolol
category of antiarrhythmics that show reduced mortality for pt with hf
class II antiarrhythmics
-propranolol
-esmolol
-carvediol
-metoprolol
-bisoprolol
used for txmt of recurrent ventricular arrhythmias

-many of these agents can precipitate torsade de pointe arrhythmias
classs II antiarrhythmics
-sotalol
-ibutilide
-brtylium
-amiodarone
these agents prolong the action potential by blocking potassium channels
classs II antiarrhythmics
-sotalol
-ibutilide
-brtylium
-amiodarone
ae:
-pulmonary fibrosis
-corneal microdeposits
-hepatic dysfxn
-hypo/hyper thyroidism
-photosensitvity
classs II antiarrhythmics
-sotalol
-ibutilide
-brtylium
-amiodarone
used for atrial arrhythmias and nodal re-entry as well as hypertension and angina, these agents inhibit Ca voltage channels

-major effect on av and sinus node
Class IV antiarrhythmics
-verapamil
-diltiazem
centrally acting alpha-2 agonist that reduces sympathetic autonomic nervous system outflow, resulting in decreased blood pressure
clonidine
ae: rebound htn, mi, tremor and tachycardia
clonidine, all these ae occur when the drug is abruptly discontinued
used in the management of congestive heart failure, these drugs are reversible inhibitors of Na/K ATPase
digitoxin and digoxin
inc left ventricular ejection fraction, inc co, and inc exercise capacity

ae: narrow therapeutic window
digitoxin
ae:
-see gi (n/v) and cns (hallow light) effect with toxicity first

-must watch renal fxn - can lead to renal failute
digitoxin and digoxin
pt with low K, low Mg, high Na or high Ca can experience arrhythmias with these agents
digitoxin and digoxin
agents that dec triglycerides dramatically by stimulating lipoprotein lipase
fibric acids

gemfibrozil
fenofibrate
clofiprate
antihyperlipedimic drug associated iwth gallstones and hepatobillary neoplasms
clofibrate - fibric acid
antihypertensive drug that blocks the release of norepinephrine by replacing it from intracellular vesicles
guanethidine
ae include serious orthostatic hypotension

-effects of the drug are antigonized by tricyclic antidepresants
guanethidine
used for txmt of ventricular arrhythmias, esp following MI bc it works only on ischemic tissue
lidocaine
inc threashold, dec phas 4 slope, dec conduction velocity of fast response tissue
lidocaine
alpha-2 agonist dec adrenergic outflow from CNS, resulting in dec peripherial resistance and dec blood pressure
methyldopa
-centrally acating antihypertensive agent
-inhibits central release of NE
-reduces central output of vasoconstrictive impulse
methyldopa
prefered drug for txmt of htn during pregnancy
methyldopa
drug can haptenate rbc protiens resulting in an autoimmune hemolytic anemia
methyldopa
ae:
sedation
dry mouth
low libido
parkinson signs
***hyperprolactinemia
methyldopa
lipid-lowering agent that causes cutaneous flushing, which can be avoided by administering concurrently with aspirin
Niacin
directly reduces the secretion of VLDLs from and apolipoprotien synthesis by the liver, while inc HDL
niacin
causes an inc in cGMP within vascular smooth muscle, resulting in dec preload to heart and dec bp
nitroglycerin
isosorbid dinitrate
administer as sublingual patch to dec 1st pass effect
nitroglycerin
potential se:
cyanide poisoning
postural hypotension
throbbinb head ache
flusing
nitroglycerin
contraindicated for use with seldeafil, a PDE-5 inhibitor
nitroglycerin
rarely used antihypertensive agent
-blocks the storage and release of caecholamines and serotonin from neurons
reserpine

drug readily enters cns and can cause suicidal depression adn parkinson like symptoms
inhibits the rate-limiting enzyme of cholesterol syntehsis, HMG-CoA reductase, resulting in dramatically decreased LDL levels
Statins
lovastatin
pravastatin
simvastatin
atorvastatin
ae:
-may cause elevated liver enzymes
-myositis with ince creatine kinase from skeletal muscles
-rare: rhabdomyolysis
Statins
lovastatin
pravastatin
simvastatin
atorvastatin