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dr shaw review of cardiac pharm
cardiac pharmacology
30
Pharmacology
Professional
12/07/2009

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Cards

Term
the only point of electrical connection between atria and ventricles
Definition
SA node
Term
abnormality that occurs when action potiental re- enters are that was just excited
Definition
AV nodal re-entry tachycardia
Term
ventricular premature contractions are also known as?
Definition
ectopic pacemaker
Term
where does the electrical potiential originate? in the heart?
Definition
pacemaker cells or AV nodal cells in right atrium
Term
describe the pathway of excitation in the heart
Definition
starts in the SA node, spread to the left atrium and the AV node ( only point of electrical connection between atria and ventricle)spreads down bundle of his, to the purkinje fibers that spread throughout the ventricle
Term
P wave
Definition
atrial depolarization
Term
PR segment
Definition
AV node delay
Term
QRS complex
Definition
ventricular depolarization
Term
ST segment
Definition
time during which ventricles are contracting and emptying
Term
T wave
Definition
ventricular repolarization
Term
TP interval
Definition
time during which ventricles are relaxing and filling
Term
myocyte phase 0
Definition
steep slope due to fast na channels
Term
myocyte phase 2
Definition
long plateau dues to ca++ influx
Term
myocyte phase 4
Definition
shallow slope, slower depolarization
Term
pacemaker phase 0
Definition
shallow slope due to dependence on ca++
Term
pacemaker phase 2
Definition
little to no plateau
Term
pacemaker phase 4
Definition
steeper slope so faster depolarization
Term
quinidine
Definition
na channel blocker
Term
lidocaine
Definition
na channel blocker
Term
flecainide
Definition
na channel blocker
Term
propranolol
Definition
beta adrenergic blocker
Term
amiodarone
Definition
K channel blocker
Term
amlodipine
Definition
ca channel blocker
Term
veraprimil
Definition
ca channel blocker
Term
quinidine is used to treat?
Definition
v tach, a fib
Term
lidocain is use to treat?
Definition
emergency v tach
Term
flecainide is used to treat?
Definition
a fib in endurance horses
Term
propranolol is used to treat?
Definition
superventricular tachycardia, or v tach
Term
amiodarone is used to treat?
Definition
dogs with v tach, little vet med experiecne
Term
amlodipine and veraprimil is used to treat?
Definition
hypertension in cats
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