EKG/ECG

P Wave

• SA Nodes contracts

  Both atria contracts

• Impulses reach the av node 0.10 delay allows

• Repolarization or recovery of the ventricles

• Impulses hit av bundle branch off into two bundles down front of heart into purkinje fibers

QRS

• Repolarization or recovery of the ventricles

• Impulses hit av bundle branch off into two bundles down front of heart into purkinje fibers

• SA Nodes contracts

  Both atria contracts

• Impulses reach the av node 0.10 delay allows atria

What do the letters EKG stand for?

• Electrocardiograph
• Electromagneticgraph
• Electrocardiogram 
• Electrolytes

An electrocardiogram measures what?

• The amount of pressure exerted on blood vessels.
• The electrical activity of the heart.
• How many times the heart contracts over time.
• The body's temperature caused by friction of blood in vessel.

The place where the electrical current starts and is considered the heart's pacemaker:

• Sino-atrial node 
• right atrium
• atria-ventricular node 
• left ventricle

The t-wave correlates with which event?

• atrium contraction /signals moving from SA node to AV node
• ventricle contraction
• ventricle repolarization
• both atrial and ventricle contraction

The Purkinje fibers are located at...

• F
• G
• H
• I

The QRS-wave correlates with which event?

• atrium contraction /signals moving from SA node to AV node
• ventricle contraction
• ventricle repolarization
• both atrial and ventricle contraction

The nurse is reviewing a patient’s electrocardiogram. Which wave should the nurse recognize as being the first positive wave in a normal cardiac cycle?

• P wave

• Q wave

• R wave

• S wave

A patient is experiencing electrocardiogram changes. Which wave should the nurse recognize as representing ventricular repolarization?

• Q wave

• R wave

• S wave

• T wave