Relias Dysrhythmia Basic B Test Questions and Complete
Answers Graded A+
NSR
Rate 60-100 beats/minute originates from SA node
Regular
One P wave before each QRS
PR Interval 0.12 to 0.20 seconds
QRS Duration 0.04 to 0.10 seconds
Sinus Brady
Rate is below 60 beats/minute arising from the SA node Follows
normal conduction pathways
P and QRS complexes have normal duration and pattern
Sinus Tachy
Rate above 100 beats/minute Normal response to Sympathetic Nervous System Stimulation
A-Fib
, Atrial rate is 350-600 beats/minute
No P waves, client loses atrial kick
Rate of 100 or less is called controlled ventricular response
Rate of 100 or greater is called rapid
A-Flutter
Rapid atrial depolarization
Atrial rate 250-350 beats/minute
1St Degree Block
Conduction delay AV node conduction is slow
PR Interval is > 0.20 seconds (5 small boxes)
2nd Degree Type I Block or Wenckebach or Mobitz Type I
Sinus impulse takes a little longer to conduct through the impaired AV node until one impulse is completely blocked
Answers Graded A+
NSR
Rate 60-100 beats/minute originates from SA node
Regular
One P wave before each QRS
PR Interval 0.12 to 0.20 seconds
QRS Duration 0.04 to 0.10 seconds
Sinus Brady
Rate is below 60 beats/minute arising from the SA node Follows
normal conduction pathways
P and QRS complexes have normal duration and pattern
Sinus Tachy
Rate above 100 beats/minute Normal response to Sympathetic Nervous System Stimulation
A-Fib
, Atrial rate is 350-600 beats/minute
No P waves, client loses atrial kick
Rate of 100 or less is called controlled ventricular response
Rate of 100 or greater is called rapid
A-Flutter
Rapid atrial depolarization
Atrial rate 250-350 beats/minute
1St Degree Block
Conduction delay AV node conduction is slow
PR Interval is > 0.20 seconds (5 small boxes)
2nd Degree Type I Block or Wenckebach or Mobitz Type I
Sinus impulse takes a little longer to conduct through the impaired AV node until one impulse is completely blocked
