ECG Mix

Question 1

What do you see in LA enlargement?

Answer 1

Lead 2 - bifid p waves

Lead 6 - biphasic p waves with terminal end portion

Question 2

What do you see in LV Hypertrophy?

Answer 2

R wave in V5 or V6 > 25mm
S wave in V1 or V 2 > 25mm
Sum of S wave and r wave in V1 and V6 respectively > 35mm

Question 3

What do you see in hyperkalaemia?

Answer 3

1. Flattened/ absent p waves
2. Prolonged PR interval
3. Tall tented T waves
4. Widened QRS complex

Question 4

What do you see on an ECG in hypokalaemia

Answer 4

1. Small T waves
2. Prominent U waves
3. ST depression
4. Long PR interval