Sinus Arrhymias

Question 1

Normal sinus rhythm

Answer 1

Rate: 60-100 bpm

Rhythm: regular

P wave: normal and precedes each QRS

PR Interval: .12- .20 seconds

QRS: less than or = to .12 seconds

Question 2

Sinus bradycardia

Answer 2

Rate: 40-60 bpm
Rhythm: regular
P wave: normal and proceeds each QRS 
PR interval: .12- .20 seconds 
QRS: less than or equal to .12 seconds

Question 3

Sinus tachycardia

Answer 3

Rate: 100-180 bpm

Rhythm: regular

P wave: normal and precedes each QRS

PR interval: .12 - .20 seconds

QRS: less than or= to .12 seconds

Question 4

Sinus arrhythmia

Answer 4

Rate: usually 60-110 bpm

Rhythm: IRREGULAR

P wave: normal and precedes each QRS

PR interval: .12- .20 seconds

QRS: less than or = to .12 seconds

Question 5

Sinus pause –> sinus arrest

Answer 5

Rate: basic rhythm is 60-100 bpm, slower with pause

Rhythm: basic rhythm is regular, irregular with pause, rhythm does not resume on time after pause

P wave: normal and precede each QRS

PR interval: .12- .20 seconds

QRS: less than or= to .12 seconds

Question 6

Sinuses pause - sinus EXIT BLOCK

Answer 6

Rate: basic rhythm is 60-100 bpm, slower with pause

Rhythm: basic rhythm is regular, irregular with pause, rhythm resumes on time after pause

P wave: normal and precede each QRS

PR interval: .12- .20 seconds

QRS: less than or= to .12 seconds