GUIDE FULL SOLUTIONS BEST A+
◉ Sinus Bradycardia. Answer: Regular
Rate: <60
P Wave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
◉ Sinus Tachycardia. Answer: Regular
Rate: 100-150
P Wave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
◉ Premature Atrial Contraction. Answer: 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
◉ Atrial Fibrillation. Answer: IRREGULAR
, Atrial rate: UNMEASURABLE
Ventricular rate: variable
P wave: unable to see
PR Interval: N/A
QRS: <0.12 sec
◉ Atrial Flutter. Answer: 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
◉ Supraventricular Tachycardia. Answer: Regular
Rate: 150-350
P wave: Hidden in QRS or T wave
PR: unable to determine
QRS: <0.12 sec
◉ Premature Ventricular Contraction. Answer: IRREGULAR
Rate: refer to underlying rhythm
P Wave: NONE