Shared Flashcard Set

Details

Antiarrhythmics Background
Antiarrhythmics Background
10
Pharmacology
Professional
09/21/2012

Additional Pharmacology Flashcards

 


 

Cards

Term
What is the most common cause of an arrhytmias?
Definition

coronary heart disease, and other conditions that damage cardiac tisse, including heart valves disorders, heart failure and damage from a heart attackt

Term
Can antiarrhytmic drugs cause arrhythmias?
Definition
Yes
Term
Describe Atrial Fibrilaation (A. Fib, AF)
Definition

Atria contract abnormally. A. Fib carries a high risk of cot formation. Chronic A. Fib requires anticoagulation therapy

 

Term
Describe Atrial flutter
Definition
A. flutter often converts to atrial fibrillation
Term
A prolonged QT interval is a marker for what?
Definition

ventriulcar tachyarrhythmias, including torsades de pointes (can result in sudden death)

Term
What is the QT interval?
Definition

Is a measure of how long it takes the heart to re-polarize (recharge) after each beat.

 

Prolonged QT interval leaves the patient vulnerable to arrhytmias

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Term

Medications can be used to convert the patient from the arrhytmia to normal sinus rhythm (NSR), or used to maintain NSR, or to reduce the heart rate. Is ventricular rate control as effective as rhythm control?

Definition

Recent trials have shown that ventricular rate control is as effective as rhythm control with cardio-version and antiarrhytmic drugs

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Term

Which is first line in correcting arrhythmias: ventricular rate control or rhythm control?

Definition
Ventricular rate control
Term
Which drugs are used in rate control?
Definition

Drugs used for rate control in atrial fibrillation, or A. Fib (the most common type of arrhythmia) are beta - blockers, non-dihydropyridine calcium channel blockers (diltiazem and verapamil) and digoxin, all of which reduce heart rate

 

Term
Which are the calcium channel blockers used in rate control?
Definition

diltiazem and verapamil

 

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