STEMI ECG

Question 1

ANTERIOR INFARCTION

Answer 1

V1-V4

Question 2

Proximal LAD

Answer 2

• proximal to first septal and first diagonal
  -depressed inferior leads (reciprocal)
  -ST elevation at AVR, V1-V4
• V5 to V6 is also depressed
  • -acquired RBBB

Question 3

Distal LAD

Answer 3

• below the septal and diagonal
• infero apical
• ST elevation AVF, V6
• ST depression AVR, V1
• NO ST depression in inferior leads

Question 4

MID LAD: (intermediate risk)

Answer 4

• between first septal and first diagonal
• ST elevation I and AVL
• AVR depressed
• ST depression III < II

Question 5

LEFT MAIN: (high risk)

Answer 5

• ischemia both LAD and LCX
• ST elevation AVR > V1
• ST depression lateral wall
• acquired RBBB
• posterobasal ischemia

Question 6

LCX

Answer 6

• supplies the lateral Lv free wall
• ST elevation II > III
• lead I isoelectric or ST elevation
• V1 st depression

Question 7

RCA

Answer 7

• ST elevation III > II
• ST depression at lead I and AVL (AVL>I)

Question 8

RV INFARCTION:

Answer 8

• at least 2mm ST Elevation at II,III,AVF

Question 9

RV Infarction

Answer 9

• V3R:
• ST elevation: high risk, proximal occlusion
• ST depression: moderate risk, LCX occlusion - if isoelectric: low risk, distal RCA occlusion