USMLE Forums banner
1 - 7 of 7 Posts

·
Registered
Joined
·
4,342 Posts
Discussion Starter · #1 ·
Calcium channel blockers are known to slow conduction through the atrioventricular node. Which of the following ECG components will be affected most?

A- PR interval
B- QRS amplitude
C- QRS width
D- Sinus rate
E- QT interval
 

·
Registered
Joined
·
4,342 Posts
Discussion Starter · #3 ·
Am not sure but I think it's the PR interval because it represents conduction through the AV node.

There's was a nice thread explaining the ECG changes here in this forum but I cannot find it :(
 
1 - 7 of 7 Posts
Top