What would cause a prolonged PR interval?

Related questions

1. What does the PR segment represent?
2. What does ST segment represent?
3. How many mm of ST elevation is significant?
4. What does ST segment elevation indicate?
5. What does St interval represent?
6. Why does Mi cause ST elevation?
7. What is heart PR?
8. What does the ST segment represent?
9. Can first degree AV block reversed?
10. What is 1st degree AV block?

Tags

1. #short
2. #junctional
3. #rhythm
4. #hypokalemia
5. #reentrant
6. #tachycardia
7. #disease
8. #prolongation
9. #syndrome
10. #rheumatic
11. #acute
12. #levine
13. #white
14. #atrioventricular
15. #parkinson
16. #carditis
17. #fever
18. #ganong
19. #interval
20. #associated
21. #wolff
22. #120ms