What exactly does an ECG measure?

Related questions

1. What do ECG leads represent?
2. Is low voltage ECG dangerous?
3. Do I need to remove bra for ECG?
4. Can an EKG show a blockage?
5. What causes low voltage on ECG?
6. What is the difference between an EKG and an ECG?
7. Which lead is the ground on an ECG?
8. Can you have a heart attack with good blood pressure?
9. Can ECG be wrong?
10. How do you place an ECG with 3 leads?

Tags

1. #normally
2. #records
3. #which
4. #whether
5. #strip
6. #paper
7. #electrocardiogram
8. #moving
9. #activity
10. #working
11. #screen
12. #measures
13. #electrical
14. #heart
15. #rhythm