Chapter 14 : Ectopic Atrial Rhythm

Question 1

Ectopic Atrial Rhythm is a rhythm where an ectopic atrial focus functions as the…..of the heart temporarily.

Answer 1

Main Pacemaker

Question 2

The rate set by the ectopic pacemaker must be below….

Answer 2

100 BPM

Question 3

The QRS morphology should be identical to that found in…., unless some aberrancy in the conduction of the impulse through the…..or ventricles is encountered, there is a…..abnormality present, or there is a preexisting…….block.

Answer 3

NSR, AV node, Bundle branch

Question 4

Treatment should be based off of the….of the patient

Answer 4

Hemodynamic status

Question 5

Hint #1

Answer 5

Always try to compare your new strip to an old ECG or rhythm strip

Question 6

Hint #2

Answer 6

Always evaluate the P-wave morphology and the PR interval

Question 7

Inverted P waves can be found in two circumstances

Answer 7

Low or distal ectopic foci in the atria

P waves with retrograde conduction to the atria from the AV node or ventricles

Question 8

If the AV node functions as a primary pacemaker we call the rhythm a….

Answer 8

Junctional Rhythm

Question 9

A complex originating in the AV node would depolarize in which direction

Answer 9

A circular fashion

Question 10

If the PR interval is equal to or greater than 0.12 seconds in a complex with an inverted P wave, it is considered….in orgin

Answer 10

Atrial

Question 11

If the PR interval is less than 0.12 seconds in a complex with an inverted P wave, it is considered….in orgin

Answer 11

AV node