Cardiology Quiz 3

Question 1

A major complication associated with atrial fibrillation is:
A) clot formation in the fibrillating atria.
B) a significant reduction in atrial filling.
C) pulmonary congestion and hypoxemia.
D) a profound increase in the atrial kick.

Answer 1

A) clot formation in the fibrillating atria.

Question 1

A classic sign of atrial flutter is:
A) a constant 2:1 conduction ratio.
B) the presence of sawtooth F waves.
C) a ventricular rate less than 100 beats/min.
D) an irregular but consistent R-R interval.

Answer 1

B) the presence of sawtooth F waves.

Question 2

Atrial fibrillation can be interpreted by noting:
A) PR intervals that vary from complex to complex.
B) an irregularly irregular rhythm and absent P waves.
C) a regularly irregular rhythm with abnormal P waves.
D) the presence of wide QRS complexes and a rapid rate.

Answer 2

B) an irregularly irregular rhythm and absent P waves.

Question 3

If an impulse generated by the AV node begins moving upward through the atria before theother part of it enters the ventricles:
A) the PR intervals will be greater than 0.20 seconds.
B) an upright P wave will appear after the QRS complex.
C) an inverted P wave will appear before the QRS complex.
D) a small, inverted P wave will be buried in the QRS complex.

Answer 3

C) an inverted P wave will appear before the QRS complex.

Question 4

Sinus arrest is characterized by:
A) a dropped PQRST complex.
B) an irregularly irregular rhythm.
C) PR intervals greater than 0.12 seconds.
D) irregularity during the inspiratory phase.

Answer 4

A) a dropped PQRST complex.

Question 5

The treatment for sinus tachycardia should focus on:
A) decreasing the heart rate.
B) correcting the underlying cause.
C) administering IV fluid boluses.
D) relieving pain and anxiety.

Answer 5

B) correcting the underlying cause.

Question 6

Which of the following statements regarding sinus bradycardia is correct?
A) Treatment focuses on the patient’s tolerance to the bradycardia.
B) Symptomatic bradycardia is often caused by a decreased atrial rate.
C) Sinus bradycardia often requires multiple doses of atropine to correct it.
D) Sinus bradycardia is caused by decreased vagal tone in most patients.

Answer 6

A) Treatment focuses on the patient’s tolerance to the bradycardia.

Question 7

How fast does SVT have to be?
A) greater than 60 bpm
B) greater than 100 bpm
C) greater than 120 bpm
D) greater than 150 bpm

Answer 7

D) greater than 150 bpm