EXAM QUESTIONS AND ANSWERS
Normal b4sinus b4rhythm b4- b4Regular
Rate: b460-100
P b4Wave: b4Present, b4upright
PR b4Interval: b40.12-0.20 b4sec
QRS: b4<0.12 b4sec
Sinus b4Bradycardia b4- b4Regular
Rate: b4<60 b4
P b4Wave: b4Present, b4upright
PR b4Interval: b40.12-0.20 b4sec
QRS: b4<0.12 b4sec
Sinus b4Tachycardia b4- b4Regular
Rate: b4100-150
P b4Wave: b4Present, b4upright
PR b4Interval: b40.12-0.20 b4sec
QRS: b4<0.12 b4sec
Premature b4Atrial b4Contraction b4- b4IRREGULAR
Rate: b4depends b4on b4underlying b4rhythm b4
P b4wave: b4Present b4or b4hidden b4in b4T b4wave
PR b4Interval: b40.12-0.20 b4sec
QRS: b4<0.12 b4sec
Atrial b4Fibrillation b4- b4IRREGULAR
Atrial b4rate: b4UNMEASURABLE
Ventricular b4rate: b4variable
P b4wave: b4unable b4to b4see
PR b4Interval: b4N/A
QRS: b4<0.12 b4sec
A b4fib b4RVR b4- b4IRREGULAR
Ventricular b4rate: b4100-175 b4
P b4wave: b4unable b4to b4see
PR b4Interval: b4N/A
QRS b4<0.12 b4sec
Atrial b4Flutter b4- b4Usually b4REGULAR b4can b4be b4irregular b4
Atrial b4rate: b4250-350
Ventricular b4rate: b4variable b4BUT b4< b4atrial b4rate
P b4Wave: b4Flutter
, PR b4Interval: b4N/A
QRS: b4<0.12 b4sec
Supraventricular b4Tachycardia b4- b4Regular
Rate: b4150-350
P b4wave: b4Hidden b4in b4QRS b4or b4T b4wave
PR: b4unable b4to b4determine
QRS: b4<0.12 b4sec
Junctional b4Rhythm b4- b4Regular
Rate: b440-60
P b4Wave: b4ABSENT b4or b4INVERTED b4
PR b4Interval: b4None b4or b4<0.12
QRS: b4<0.12 b4sec
Accelerated b4Junctional b4Rhythm b4- b4Regular
Rate: b460-100
P b4Wave: b4NONE b4or b4INVERTED b4
PR b4Interval: b4None b4or b4<0.12 b4
QRS: b4<0.12 b4sec
Junctional b4Tachycardia b4- b4Regular
Rate: b4>100
P b4Wave: b4NONE b4or b4INVERTED
PR b4Interval: b4None b4or b4<0.12
QRS: b4<0.12 b4sec
Premature b4Ventricular b4Contraction b4- b4IRREGULAR
Rate: b4refer b4to b4underlying b4rhythm b4
P b4Wave: b4NONE
PR b4Interval: b4N/A
QRS: b4WIDE b4and b4BIZARRE b4, b4>0.12 b4sec
Ventricular b4Tachycardia b4- b4Regular
Rate: b4>100
P b4Wave: b4NONE
PR b4Interval: b4N/A
QRS: b4WIDE b4and b4BIZARRE, b4>0.12 b4sec
Ventricular b4Fibrillation b4- b4Chaotic
Coarse: b4big b4waves
Fine: b4small b4waves
Rate: b4unmeasurable
P b4Wave: b4NONE
PR b4Interval: b4N/A
QRS: b4N/A
Idioventricular b4- b4Regular
Rate: b420-50 b4
P b4wave: b4NONE