What is a normal PR interval rate?

Related questions

1. Is ST elevation normal?
2. What does ST elevation mean for the heart?
3. What causes ST elevation?
4. What is a PR value?
5. How is ST elevation treated?
6. Is a short PR interval normal?
7. Why is ST segment elevation?
8. Can first degree heart block go away?
9. What is normal ST segment elevation?
10. Is a short PR interval anything to worry about?

Tags

1. #beginning
2. #interval
3. #duration
4. #squares
5. #first
6. #seconds
7. #measurement
8. #known
9. #should
10. #upslope
11. #small
12. #measured