Av block

Question 1

First degree

Answer 1

PR interval prolonged more than .20s
Av conduction delayed

Question 2

Second degree

Answer 2

Dropped beats
Mobitz type 1- wenkebach’s
Lengthening of successive PR intervals- dropped beat.
Physiological- at rest in atheltes high vagal tone.
mobitz type 2
Some p waves are not confucted
disease of his purkinje shstem
risk of asystole