Each small box on ECG paper represents _____ seconds. Fill in ...

[09madisonrousseau09]

Each small box on ECG paper represents _____ seconds.
 
  Fill in the blanks with correct word

Question 2

Complete the following ECG criteria for AV nodal reentrant tachycardia (AVNRT):
 
  Rhythm ___________________ _______
  Rate ___________________ _______
  P waves ___________________ _______
  PR interval ___________________ _______
  QRS duration ___________________ _______
 
  Fill in the blanks with correct word

[Athena23]

Answer to Question 1

0.04

Answer to Question 2

Rhythm Ventricular rhythm is usually very regular.
Rate 150 to 250 beats/min (usually 180 to 200 beats/min in adults).
P waves P waves are often hidden in the QRS complex. If the ventricles are stimulated first and then the atria, a negative (inverted) P wave will appear after the QRS in leads II, III, and aVF. When the atria are depolarized after the ventricles, the P wave typically distorts the end of the QRS complex.
PR interval P waves are not seen before the QRS complex, therefore the PR interval is not measurable.
QRS duration 0.11 seconds or less unless abnormally conducted.