EKG Review (1)

What is the rate of Junctional Escape Rhythm?

• 20-40 BPM

• 40-60 BPM

• 60-80 BPM

• 80-100 BPM

Which of the following waves on an EKG tracing relates to electrical activity in the atria?

• The P wave

• The T wave

• The R wave

• The Q wave

The path in which electrical signals pass through a healthy heart is: SA node, AV node, bundle of His, bundle branches, Purkinje fibers

• SA node, AV node, bundle of His, bundle branches, Purkinje fibers

• SA node, AV node, bundle of His, left atrium, Purkinje fibers

• AV node, bundle of His, right atrium, bundle branches

• SA node, left ventricle, bundle branches, Purkinje fibers

U waves are thought to represent:

• Repolarization of the Purkinje Fibers

• Depolarization of the Atria

• Repolarization of the Ventricles

• Contraction of the Myocardium

An EKG technician sees pacing spikes on a patient’s EKG but no electrical activity following the spikes. This is likely due to a pacemaker error known as

• Failure to capture

• Failure to pace

• Lead dislodgement

• Pacemaker malfunction

A patient is nearing the target heart rate during an exercise stress test when he becomes diaphoretic and complains of intense chest pain. Which response from the EKG technician is best?

• Continue the test to gather more data.

• Stop the test and alert the doctor immediately.

• Ask the patient to take deep breaths.

• Reduce the intensity of the exercise.

The atrial rate in atrial fibrillation is:

• Less than 200 bpm

• Between 200 and 350 bpm

• More than 350 bpm

• Between 150 and 200 bpm

In sinus arrhythmia the patient’s heart rhythm often changes in relation to:

• The patient’s breathing

• The patient’s blood pressure

• The patient’s mood

• The patient’s level of anxiety

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

• Anterior

• Lateral

• Inferior

• Superior

When placing electrodes for an EKG on a 5-year-old child where should the technician place the V4 electrode?

• On the left side of the chest at the fifth intercostal space at the midclavicular line.

• On the right side of the chest at the fourth intercostal space at the midclavicular line.

• On the left side of the chest at the third intercostal space at the anterior axillary line.

• On the right side of the chest at the fifth intercostal space at the midclavicular line.