Clinical ECG (Abnormal)

Question 1

2 Signs of Ischemia

Answer 1

ST segment depression (most common, maybe on stress testing)

Symmetric T wave inversion

Question 2

2 General Signs of MI

Answer 2

ST Segment Elevation

Pathologic Q waves (big and wide)

Question 3

Early, Evolving, and Old MI Signs

Answer 3

Early: ST elevation w/ tall T (tombstone), but no path Q
Evolving: Deep wide Q w/ T and ST coming down
Old: Deep wide Q w/ T upright and ST normal

Question 4

Reason for Tombstone

Answer 4

Looking at mirror of back wall

Question 5

3 Leads for Inferior MI

Answer 5

II, III, aVF

Question 6

4 Leads for Lateral MI

Answer 6

I, aVL, V5-6

Question 7

2 Leads/Special Feature for Posterior MI

Answer 7

V1 and 2 upside down tombstone

Question 8

Lead/Sign for RV Infarction

Answer 8

ST elevation in V4R

Question 9

4 Leads for Anteroseptal MI

Answer 9

Leads V1-4

Question 10

How to Tell Hypertrophy of L or R Vent (2)

Answer 10

More tissue so higher voltage in ipsilateral leads (and mirror in contra) and shift in axis towards hypertrophy side