Cardiology - ECG

Question 1

changes in II , III and AVF indicate a blockage of which aa ?

a.right coronary
b.left anterior descending
c.left circumflex

Answer 1

a.right coronary

supplies the inferior heart where these leads are

Question 2

changes in v1 , v2 and v3 , v4 indicate a blockage of which aa ?

a.right coronary
b.left anterior descending
c.left circumflex

Answer 2

b.left anterior descending

supplies anterior septal part of heart
v1-v2 are septal, v3-v4 are anterior

Question 3

changes in I , V5, V6 and all indicate a blockage of which aa ?

a.right coronary
b.left anterior descending
c.left circumflex

Answer 3

c.left circumflex

supplies lateral part of the heart where these leads are

Question 4

causes of left bundle branch block

Answer 4

aortic stenosis
conduction system fibrosis
cardiomyopathy
ischameic disease

Question 5

causes of right bundle branch block

Answer 5

relatively common in normal hearts
cor pulmonale
p.e

Question 6

at which level does heart block become symptomatic

a.first degree

b.second degree - mobits type 1

c.third degree - complete

Answer 6

b.second degree - mobits type 1

syncope, pre syncope and breathless on exertion

Question 7

at which level is heart block treated with a pacemaker regardless of symptoms

a.first degree

b.second degree - mobits type 1

c.third degree - complete

Answer 7

b.second degree - mobits type 1

c.third degree - complete

Question 8

what is bradycardia treated with

a.adenosine
b.adrenaline
c.atropine
d.amiadorone

Answer 8

c.atropine