heart block

Question 1

1st degree heart block

Answer 1

prolong PR

Question 2

2nd degree heart block- mobitz I

Answer 2

prolonged PR until no P wave

Question 3

2nd degree heart block- mobitz II

Answer 3

dropped QRS is not followed by prolonged PR

Question 4

3rd degree heart block

Answer 4

all atrial activity fails to conduct to the ventricles

Question 5

symptoms

Answer 5

asymptomatic
LBBB- reverse splitting of second sound
RBBB- physiological splitting of second sound