Electrocardiograph Quiz 1

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

An EKG measures the heart's:

• electrical activity

• rate

• rhythm

• all of the above

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

The heart's muscle is called

• endocarium

• myocardium

• pericardium

• precardium

^{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

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

The average EKG has ___________ leads

• 10

• 12

• 5

• 6

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

The EKG has small pads for conductivity called:

• leads

• electrodes

• cushions

• stickers

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

The P wave is recorded when ________ contracts

• atria

• ventricles

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

The QRS wave is recorded when the ________ contracts

• atria

• ventricles

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

The T wave represents ________.

• ventricles relaxing

• atria relaxing

• ventricles contracting

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The average heart range is between?

• 50 - 90

• 60 - 100

• 80 - 120

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

The first group of leads that are recorded on the EKG strip are the ________________ leads.

• I, II, III

• V1 - V6

• a V r, a V l, a V f