Electrocardiography

Match the following locations with the proper lead placement:

4th intercostal space to the left of the sternum

• V1

• V2

• V3

• V4

How many cardiac cycle shown in the diagram

• 2

• 4

• 5

• 6

The P wave is recorded when ________ contracts

• atria

• ventricles

The average heart range is between?

• 50 - 90

• 60 - 90

• 80 - 120

^{Identify the letter of the choice that best completes the statement or answers the question.}

Each cardiac cycle takes approximately:

• 1 second

• 0.8 second

• 80 seconds

• 60 seconds

An EKG measures the heart's:

• electrical activity

• rate

• rhythm

• all of the above