EKG and Heart Review

Which letter(s) in an EKG indicate(s) the health of the atria?

• QRS

• P-Q wave

• P wave only

• T wave

Which letter(s) of an EKG indicate(s) the health of the ventricles?

• T-wave

• S-T waves

• R wave

• QRS

If there is a flat P wave which structures in the heart are damaged?

• SA/AV node

• Bicuspid valve

• Bundle of His

• Purkinje fibers

If the p-wave is high/irregular. What is happening to the atria chamber? 

• Blood is traveling too fast
• Blood is remaining in the chamber 
• SA node is damaged
• Heart is not getting enough Oxygen

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 p-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 AV node is located at...

• A
• B
• C
• D

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

After the blood returns from the lungs, it is now____?

• deoxygenated

• oxygenated

• purple