Questions and Answers
Normal Sinus Rhythm - ANS-•Rate: 60-100 beats/min
•Rhythm: regular
•P:QRS: 1:1
•PR interval: 0.12-0.20 sec
•QRS complex: 0.6-0.10 sec
•P waves: Present, consistent configuration,
one P wave before each QRS complex
*Management: none; heart rhythm is normal
Normal Sinus Rhythm - ANS-
Sinus arrhythmia - ANS-•Rate: 60-100 bpm
•Rhythm: irregular, caring with respirations
, •P:QRS: 1:1
•PR interval: 0.12-0.20 sec
•QRS complex: 0.6-0.10 sec
*Management: none; considered a normal rhythm in the very young and very old
Sinus arrhythmia Rhythm - ANS-
Sinus Tachycardia - ANS-•Rate: 101-150 bpm
•Rhythm: regular
•P:QRS: 1:1 (with very fast rates, P wave may be hidden in preceding T wave)
•PR interval: 0.12-0.20 sec
•QRS complex: 0.6-10 sec
*Management:
treated only if symptomatic or patient is at risk for myocardial damage
-treat underlying cause (hypovolemia, fever, pain)