Chapter 11 - Introducing the Heart Block Rhythms

The other characteristics in second-degree type I block is that the impulse is not conducted and the ________ is dropped.

• AED

• ST

• QRS

• PVC

This rhythm is not a true block; there is a delay at the AV node, and each impulse is eventually conducted.

• First degree

• Second degree type I

• Second degree type II

• Third degree

This rhythm has a complete block at or below the AV node and there is no relationship between the P waves and the QRS complex.

• First degree

• Second degree type I

• Second degree type II

• Third degree

The second-degree block, type II, represents a complete block of:

• All of the internodal pathways and the AV node

• One of the bundle branches and a partial block of the other branch

• The AV node as well as a partial block of the SA node

• Both of the bundle branches and partial block of the bundle of HIS

An EKG rhythm that has NO correlation between the P waves and the QRS complexes is:

• Second-degree block type II

• First-degree block

• Second-degree type I

• Third-degree block

The second-degree type I heart block is also known as the:

• Wenckebach phenomenon

• His phenomenon

• Purkinje phenomenon

• Beasley phenomenon

The rhythm that occurs when there is an intermittent interruption in the electrical conduction system near or below the AV junction is:

• Third-degree block

• Second-degree block type I

• First-degree block

• Second-degree block type II

With second-degree block, type II:

• The ventricular rate is less than the atrial rate

• The pacemaker site is in the AV junction

• A QRS complex follows each P wave

• The P waves are all inverted

The treatment for a patient with a third-degree block and that is hemodynamically unstable is:

• Transcutaneous pacing

• Endotracheal intubation

• Synchronized cardioversion

• Defibrillation

With a second-degree block, type I, the PR intervals:

• Get progressively longer

• Are all inverted

• Are all the same at 0.20

• Get progressively shorter