answers GRADED A+
- P - wave is normal
- *** PR interval prolonged (>0.20 sec)
- QRS will be normal (0.06-0.10 sec)
1st Degree Heart Block
- P wave is normal
- PR interval is progressively longer (>0.20 sec)
- ***QRS complex will usually be normal (0.06-0.10 sec) UNTIL
IT IS MISSED, then the cycle repeated
2nd Degree Heart Block (Type 1)
- P wave is normal *** can and often does outnumber QRS
complex
- PR interval is normal or prolonged (>0.20 sec)
- QRS complex will be normal or wide
2nd Degree Heart Block (Type II)
- Absent P-wave