A+
1). Normal sinus rhythm
Ans: Regular
Rate: 60-100
P Wave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
2). Sinus bradycardia
Ans: Regular
Rate: <60
P Wave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
3). Sinus tachycardia
Ans: Regular
Rate: 100-150
P Wave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
4). Premature atrial contraction
Ans: IRREGULAR
Rate: depends on underlying rhythm
P wave: Present or hidden in T wave
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
5). Atrial fibrillation
Ans: IRREGULAR
Atrial rate: UNMEASURABLE
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, Ventricular rate: variable
P wave: unable to see
PR Interval: N/A
QRS: <0.12 sec
6). A fib rvr
Ans: IRREGULAR
Ventricular rate: 100-175
P wave: unable to see
PR Interval: N/A
QRS <0.12 sec
7). Atrial flutter
Ans: Usually REGULAR can be irregular
Atrial rate: 250-350
Ventricular rate: variable BUT < atrial rate
P Wave: Flutter
PR Interval: N/A
QRS: <0.12 sec
8). Supraventricular tachycardia
Ans: Regular
Rate: 150-350
P wave: Hidden in QRS or T wave
PR: unable to determine
QRS: <0.12 sec
9). Junctional rhythm
Ans: Regular
Rate: 40-60
P Wave: ABSENT or INVERTED
PR Interval: None or <0.12
QRS: <0.12 sec
10). Accelerated junctional rhythm
Ans: Regular
Rate: 60-100
P Wave: NONE or INVERTED
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