PRI - Answers <0.20s or less (5 small boxes)
QRS - Answers <0.10s or less (2.5 small boterm-0xes)
sinus rhythm - Answers - *60-100 BPM*
- Reg.
- P wave: upright, look alike, one for every QRS
- PRI: <0.20s, QRS: <0.10s
sinus bradycardia - Answers - *<60 BPM*
- Reg.
- P wave: upright, look alike, one for every QRS
- PRI: <0.20s, QRS: <0.10s
sinus tachycardia - Answers - *>100 BPM or < 180 BPM*
- Reg.
- P wave: upright, look alike, one for every QRS
- PRI: <0.20s, QRS: <0.10s
sinus arrhythmia - Answers - *60-100 BPM*
- *slightly irreg.*
- P wave: upright, look alike, one for every QRS
- PRI: <0.20s, QRS: <0.10s
sinus block - Answers - *50-80 BPM*
- *Irreg*: pause is same distance between R's
- P wave: upright, look alike, one for every QRS
- PRI: <0.20s, QRS: <0.10s
sinus arrest - Answers - *40-70/80 BPM*
- *Irreg*: not same distance between R's