Chapter 8: Cardiac Conduction System and EKG Tracings

Bundle branches carry electrical impulses to the walls of _______?

• Ventricles

• Veins

• Arteries

• Arterioles

What is the SA node intrinsic rate?

• 75-90 BPM

• 50-120 BPM

• 60-100 BPM

• 50-100 BPM

_____________ is the amount of blood, measured in liters, that the heart pumps each minute.

• Cardiac Rhythm

• Cardiac Cycle

• Blood Pressure

• Cardiac Output

During ________ the cells become more positively charged and they contract.

• Depolarization

• Repolarization

The EKG technician job is to ________?

• Make Diagnoses

• Interpreting the EKG

• Generate a readable and accurate tracing

The area beween two waves, where the EKG returns to the isoelectric line, is called a ________?

• Isoelectric line

• Wave

• Tracing

• Segment

If the U wave is large it may indicate that the patient has a ____________?

• Low sodium level

• Low potassium level

• Low blood pressure

• Low oxyen level

The P wave is the first positive deflection,or upward movement, in the complex and it represents _____________?

• Atrial Depolarization

• Atrial Repolarization

• Ventricular Depolarization

• Ventricular Repolarazation

Which wave does not always appear?

• P Wave

• Q wave

• R Wave

• S Wave

QT Interval differs based on

• Height

• Gender

• Age

• Heart Rate