Complete Solutions – A+ Pass Score
1. Normal sinus rhythm: Regular
Rate: 60-100
P Ẃave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
2. Sinus Bradycardia: Regular
Rate: <60
P Ẃave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
3. Sinus Tachycardia: Regular
Rate: 100-150
P Ẃave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
4. Premature Atrial Contraction: IRREGULAR
Rate: depends on underlying rhythm
P ẃave: Present or hidden in T ẃave
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
5. Atrial Fibrillation: IRREGULAR
Atrial rate: UNMEASURABLE
Ventricular rate: variable
P ẃave: unable to see
PR Interval: N/A
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, QRS: <0.12 sec
6. A fib RVR: IRREGULAR
Ventricular rate: 100-175 P
ẃave: unable to see PR
Interval: N/A
QRS <0.12 sec
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