Author Question: The AV junction consists of the AV node and the nonbranching portion of the bundle of His. ... (Read 60 times)

dalyningkenk · **on:** Jun 25, 2018

The AV junction consists of the AV node and the nonbranching portion of the bundle of His.

Indicate whether the statement is true or false

Question 2

Complete the following ECG criteria for atrial flutter:

Rhythm ___________________ _______
Rate ___________________ _______
P waves ___________________ _______
PR interval ___________________ _______
QRS duration ___________________ _______

Fill in the blanks with correct word

anoriega3 · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

T

Answer to Question 2

Rhythm Atrial regular, ventricular regular or irregular depending on AV conduction or blockade.
Rate Atrial rate 250 to 450 beats/min, typically 300 beats/min; ventricular rate variable, determined by AV blockade; the ventricular rate will usually not exceed 180 beats/min because of the intrinsic conduction rate of the AV junction.
P waves No identifiable P waves; saw-toothed flutter waves are present.
PR interval Not measurable.
QRS duration 0.11 seconds or less, but may be widened if flutter waves are buried in the QRS complex or if abnormally conducted.