EMQs in Clinical Medicine.pdf - Peshawar Medical College

6 Cardiovascular medicine
5 ECG abnormalities
A
B
C
D
E
F
G
subendocardial infarction
pulmonary embolus
right bundle-branch block
Mobitz type II second-degree
heart block
hyperkalaemia
inferior myocardial infarction
anterolateral myocardial
infarction
H
I
J
K
L
M
left bundle-branch block
hypokalaemia
pericarditis
atrial fibrillation
mitral regurgitation
mitral stenosis
For each clinical scenario/ECG finding give the most likely cause. Each option
may be used only once.
1 A 26-year-old woman presents acutely unwell with shortness of breath. Her ECG
shows sinus tachycardia, deep S waves in I, inverted T waves in III and Q waves in III.
2 Dominant R in V1, inverted T waves in V1–V3, deep wide S waves in V6.
3 Prolonged P–R interval, depressed ST, flattened T waves, prominent U waves.
4 Sinus rhythm, bifid ‘p’ waves best seen in II, V3 and V4.
5 A 65-year-old man presents with chest pain radiating to the jaw. The ECG shows
ST segment elevation in II, III and aVF, with T-wave inversion in V5 and V6.
Answers: see page 16.