EKG Review

Wenckebach is characterized by increasingly long PRI's followed by a ____________ P wave.

• Long

• Irregular

• Blocked

• Normal

The atrial rate in atrial fibrillation is:

• 101-150 bpm

• 60-100 bpm

• 40-60 bpm

• More than 350 bpm

When the atria and the ventricles are seen to be beating independently it is called:

• Third-degree heart block

• First degree heart block

• Second-degree heart block, Mobitz Type II

• Second-degree heart

A regular rhythm with a rate of 100-250 bpm would likely be:

• Ventricular tachycardia

• Atrial Flutter

• Atrial tachycardia

• Ventricular fibrillation

Leads II, III, and aVF view which portion of the heart?

• Inferior

• Anterior

• Septal

• Superior

Which of the following are considered precordial leads?

• I, II, III

• aVF, aVL, aVR

• LA, RA, LL, RL

• V1, V2, V3, V4, V5, V6

In sinus arrhythmia a gradual decreasing of the heart rate is usually associated with:

• Coughing

• Expiration

• Inspiration

• A dying heart

How do you determine whether the atrial rhythm on the EKG tracing is regular or irregular?

• Compare PRI's

• Compare R-R waves

• Compare P-P waves

• Look at Heart Rate

U waves are thought to represent:

• Repolarization of the Purkinje Fibers

• Depolarization of the Purkinje Fibers

• Repolarization of the Ventricles

• Repolarization of the Atria

The PRI of a first-degree AV block:

• 0.12-.20 seconds

• Stays the same

• Is irregular and greater than 0.12 seconds

• Is constant and greater than 0.2 seconds