Daily Archives: November 19, 2015

I’ve been asked quite a bit about the effect of class I anti-arrhythmic drugs.  The three subclasses of these drugs have different effects but they share one thing in common:  they block Na channels. Na channels in ventricular and atrial cells … Continue reading →

I’m getting this one a lot: I have a question regarding #28 on one of your old exams: “If the AV node is destroyed then it is expected that…” I understand that “b) the ventricles will beat at a slower rate than … Continue reading →