What causes a prolonged QRS complex?

Related questions

1. What represents ventricular depolarization?
2. How do you calculate QRS complex?
3. Why QRS complex is high amplitude?
4. How wide is a normal QRS complex?
5. What does it mean when the QRS is upside down?
6. What is a normal QRS duration?
7. What is normal QRS interval?
8. How do you treat a wide QRS complex?
9. What is the difference in amplitude of the P wave and QRS complex?
10. What is the normal QRS axis?

Tags

1. #duration
2. #small
3. #ventricular
4. #white
5. #rhythm
6. #complex
7. #every
8. #hyperkalemia
9. #pattern
10. #preexcitation
11. #parkinson
12. #include
13. #right
14. #pacemaker
15. #seconds
16. #boxes
17. #causes
18. #widened