MI ECG + coronary artery distributions +JVP

Question 1

V1-V4

Answer 1

Anterior wall (LAD)

Question 2

V1-V2

Answer 2

Anteroseptal (LAD)

Question 3

V4-V6

Answer 3

Anterolateral (LAD or LCX)

Question 4

I, aVL

Answer 4

Lateral wall (LCX)

Question 5

II, III, aVF

Answer 5

Inferior wall (RCA)

Question 6

LCX

Answer 6

LV: lateral and post walls

Question 7

LAD

Answer 7

Anterior 2/3 of IV septum
Anterior papillary muscle
Anterior surface of LV

Question 8

Acute marginal artery

Answer 8

RV

Question 9

Posterior descending/interventricular artery

Answer 9

Posterior 1/3 of IV septum

Posterior walls of ventricles

Question 10

RCA

Answer 10

SA and AV nodes. Also gives off PDA in 85%.

Question 11

P wave=

Answer 11

atrial depol

Question 12

PR interval=

Answer 12

Conduction delay thru AV node

Question 13

QRS complex=

Answer 13

ventricular depol

Question 14

QT interval

Answer 14

Contraction of the ventricles

Question 15

ST segment

Answer 15

Isoelectric period of ventricular depol

Question 16

a wave on JVP

Answer 16

atrial contraction

Question 17

c wave on JVP

Answer 17

tricuspid valve bulge into atrium with RV contraction (varies in size)

Question 18

x wave on JVP

Answer 18

atrial relaxation and downward displacement of tricuspid valve with RV contraction
[absent in tricuspid regurg]

Question 19

v wave on JVP

Answer 19

inc RAP dur to filling against closed tricuspid valve

Question 20

y wave on JVP

Answer 20

blood flow from RA to RV