Arrhythmias Flashcards
What are the three most common reentry arrhythmias? Compare where the reentry circuit occurs
Atrial flutter - RA
AV node reentry tachycardia - Around the AV node
Ventricular tachycardia - In ventricle, around a scar
How do you investigate an arrhythmia
ECG
Holter monitor, Implanted loop recorder
Echo
MRI
CT
Angiography
Stress testing
In what location in the heart does the AF irregularity originate?
LA - around the entry points of the pulmonary veins
Which structure determines the pulse rate in AF?
The AV node
Which drugs are used to control rate in AF?
Beta-blocker - Atenolol
Calcium channel blocker - Verapamil
Digoxin
What are some narrow complex tachycardias?
AF
SVT
Atrial flutter
What are some wide complex tachycardias?
VT
When might SVT have a wide complex?
When there is a preexisting BBB