Detailed questions And Answers with
Illustrations
Sinus Tachycardia
Regular
Rate: 100-150
P Wave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
Premature Atrial Contraction
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
IRREGULAR
Atrial rate: UNMEASURABLE
Ventricular rate: variable
P wave: unable to see
PR Interval: N/A
QRS: <0.12 sec
Normal sinus rhythm
Regular
, Rate: 60-100 m9
P Wave: Present, upright
m9 m9 m9
m9 PR Interval: 0.12-0.20
m9 m9
sec QRS: <0.12 sec
m9 m9 m9 m9
Sinus Bradycardia
m9
Regular
m9 Rate:
<60
m9
P Wave: Present, upright
m9 m9 m9
m9 PR Interval: 0.12-0.20
m9 m9
sec QRS: <0.12 sec
m9 m9 m9 m9
A fib RVR
m9 m9
IRREGULAR
Ventricular rate: 100-175 m9 m9