What does the P-wave signal?
What occurs between the P-wave and the QRS complex?
The atria contract.
What occurs directly after the QRS complex.
What does the T-wave signal?
What should the duration of the P wave be?
(1 square = 0.20s)
What should the duration of the PR interval be?
What should the duration of the QRS complex be?
(1 square = 0.2s)
How is ST elevation defined?
> 1mm (limb lead)
> 2mm (chest lead)
How do you calculate the heart rate on an ECG?
300 divided by the number of large squares between beats
What is the standard voltage configuration of an ECG?
What is the normal paper speed of an ECG?
What does ST depression indicate?