Nuclear Cardiology Seminar Notes - EKG

Question 1

which two leads of a 12 lead EKG are representative of the right side of the heart?

Answer 1

aVR, v1

Question 2

which 3 leads are the transition between right and left sides of the heart?

Answer 2

v2, v3, v4

Question 3

which 4 leads represent the lateral/left side of the heart?

Answer 3

v5, v6, avl, I

Question 4

which 3 leads are the inferior side of the heart?

Answer 4

II, III and avf

Question 5

what is the position of the st segment during an acute MI?

Answer 5

st segment elevation

Question 6

in what type of MI will the ST segment be depressed?

Answer 6

sub endocardial

Question 7

which waves “makes the dx of infarction”?

Answer 7

q waves

Question 8

a large R waves in v1 v2 and or v3 with st depression indicates presence of MI where in the heart?

Answer 8

posterior wall

Question 9

prominent q waves indicate what has happened?

Answer 9

that part of the heart has necrosed - it indicated scarred myocardium and past MI (even if it’s just been couple hours after MI)

Question 10

typically with an MI you first get _______; once the MI has happened (about hours to days post) what can be expected then? (3)

Answer 10

st elevations; q waves, st a little less elevated, inverted t’s

Question 11

what is expected to be seen weeks post MI? (3)

Answer 11

st elevations gone (returned to baseline); q waves present; inverted ts’