Texas Wesleyan University NURSING 8 Cardiac Study guide.

Cardiac Study Guide




Sinus rhythm (normal)

Rhythm Regular
Rate Normal (60-100 bpm)
P Wave Normal (positive & precedes each QRS)
PR Interval Normal (0.12-0.20 sec)
QRS Normal (0.06-0.10 sec)




Sinus Bradycardia
Rhythm Regular
Rate Slow (< 60 bpm)
P Wave Normal
PR Interval Normal (0.12-0.20 sec)
QRS Normal (0.06-0.10 sec)




Sinus tachycardia
Rhythm Regular
Rate Fast (> 100 bpm)
P Wave Normal, may merge with T wave at very fast



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, rates
PR Interval Normal (0.12-0.20 sec)
QRS Normal (0.06-0.10 sec)
Notes QT interval shortens with increasing heart
rate




Atrial Fibrillation (a-fib)
Rhythm Irregular
Rate Very fast (> 350 bpm) for Atrial, but
ventricular rate may be slow, normal or fast
P Wave Absent - erratic waves are present
PR Interval Absent
QRS Normal but may be widened if there are
conduction delays




Atrial Flutter (a-flutter)
Rhythm Regular or irregular
Rate Fast (250-350 bpm) for Atrial, but ventricular
rate is often slower
P Wave Not observable, but saw-toothed flutter
waves are present
PR Interval Not measureable
QRS Normal (0.06-0.10 sec)




This study source was downloaded by 100000890485048 from CourseHero.com on 09-14-2024 15:09:14 GMT -05:00


https://www.coursehero.com/file/234370945/Cardiac-Study-guidedocx/