What is first degree heart block?

Related questions

1. What is PQ in ECG?
2. What is normal range of ECG?
3. What does prolonged PR interval indicate?
4. What is PR in ECG?
5. What is normal RR in ECG?
6. What does a wide PR interval mean?

Tags

1. #system
2. #greater
3. #degree
4. #first
5. #atrioventricular
6. #seconds
7. #showing
8. #conduction
9. #lengthened
10. #which
11. #heart
12. #beyond
13. #electrical
14. #disease
15. #interval
16. #cardiology
17. #prolongation
18. #specialty
19. #block