ECGs - patterns

Question 1

RBBB

Answer 1

Broad QRS
MaRRoW (RSR in V1)
Deep slurred S waves in lateral leads

Question 2

LBBB

Answer 2

Broad QRS
WiLLiaM
Dominant S wave in V1 with broad notched R waves
Absent Q waves in lateral leads

Question 3

Acute pericarditis

Answer 3

PR depression
Widespread saddle-shaped ST elevation
Reciprocal ST depression and PR elevation in aVR and V1
Absence of reciprocal ST depression elsewhere

Question 4

STEMI

Answer 4

Septal: V1-2
Anterior: V3-4
Lateral: I, aVL, V5-6
Inferior: II, III, aVF