Main Features ECG

Question 1

Hypercalcaemia

Answer 1

Short QT

Osbourne J wave if severe

Question 2

Hyperkalaemia

Answer 2

Absence of P wave
Tall tented T wave
Wide QRS if severe

Question 3

Hypokalaemia

Answer 3

U wave
Prolonged PR
ST depression
Small or absent T 
Long QT

Question 4

Hypothermia

Answer 4

J wave
Long QT
Brady
Heart block

Question 5

WPW

Answer 5

Short PR
Wide QRS
Slurred upstroke 
Delta wave 
LAD if R sided pathway = B 
RAD if L sided pathway = A

Question 6

STEMI

Answer 6

> 1mm in limb
2mm in chest leads
LBBB suggestive