ECG interpretation

Question 1

What is the first thing you check before beginning ECG interpretation?

Answer 1

Confirm the name and date of birth of the patient matches the details on the ECG.
Check the date and time that the ECG was performed.

Question 2

Which are the lateral leads?

Answer 2

I
aVL
V5
V6

Question 3

Which are the inferior leads?

Answer 3

II
III
avF

Question 4

Which are the septal leads

Answer 4

V1

V2

Question 5

Which are the anterior leads?

Answer 5

V3

V4

Question 6

What is a normal adult heart rate?

Answer 6

60-100 bpm

Question 7

How do you calculate the heart rate on a regular rhythm strip?

Answer 7

Count the number of large squares present in one R-R interval
Divide 300 by this number

Question 8

If the rhythm is irregular, how do you calculate the rate?

Answer 8

Count the number of QRS complexes and multiply by 3

Question 9

Which direction does the overall direction of electrical spread go in the heart?

Answer 9

From 11 o clock to 5 o clock

Question 10

Which leads do you look at to determine cardiac axis?

Answer 10

Leads I, II and III

Question 11

What does normal cardiac axis look like?

Answer 11

Lead II has the most positive deflection compared to leads I and IIIs

Question 12

What causes Right Axis Deviation?

Answer 12

Right ventricular hypertrophy

Question 13

What are the ECG findings for right axis deviation?

Answer 13

Lead I is negative and Lead III is positive (Reaching Towards)

Question 14

What are the ECG findings for left axis deviation?

Answer 14

Leads III has the most positive deflection
Leads I and III are negative
(Leaving each other)