ECG

Question 1

Conn’s Syndrome *

Answer 1

Flat T
ST depression
Long QT
Long PR

Question 2

Hyperkalaemia

Answer 2

Tall tented T waves
Small P waves
Wide QRS

Question 3

Hypokalaemia

Answer 3

Small/inverted T waves
Depressed ST segments
Long PR
Long QT
Prominent U waves

Question 4

Hypocalcaemia

Answer 4

Long QT interval

Question 5

Hypercalcaemia

Answer 5

Tented T waves
Short QT interval

Question 6

Acute Coronary Syndrome *

Answer 6

• If ECG shows ST elevation = STEMI
• If ECG shows ST depression, deep T wave inversion look at troponins
• If troponins normal = unstable angina
• If troponins are abnormal = NSTEMI

Question 7

Angina *

Answer 7

Usually normal, may show ST depression and T wave inversion

Question 8

AVNRT

Answer 8

P waves not visible and normal QRS

Question 9

Wolff-Parkinson-White Syndrome

Answer 9

Shortened PR interval, slurred start and narrow QRS

Question 10

Atrial Fibrillation

Answer 10

Irregularly irregular, F waves, no clear P waves, rapid and irregular QRS complex

Question 11

First Degree Heart Block

Answer 11

Long PR interval

Question 12

Third Degree Heart Block

Answer 12

P waves and QRS complexes independent

Question 13

Bundle Branch Block

Answer 13

R wave in V1 and V6 on RBBB
Slurred S wave in V1 and R wave in V5/6 in LBBB

Question 14

Pericarditis

Answer 14

Concave ST, PR depression - saddle shaped

Question 15

Hypertrophic Cardiomyopathy

Answer 15

Abnormal, deep T wave inversion

Question 16

Arrhythmogenic Cardiomyopathy

Answer 16

T wave inversion and epsilon wave in leads V1, 2 and 3

Question 17

Second degree heart block Mobitz type 1

Answer 17

Progressive prolongation of PR interval until beat drop

Question 18

Second degree heart block Mobitz type 2

Answer 18

PR interval constant but not often followed by QRS