EKG 2

What is an electrocardiogram?

• An instrument used for recording an EKG.

• The EKG paper that is used for recording an EKG.

• The pen that is heat sensitive for tracing an EKG.

• A recording or tracing of an EKG.

Tags

NGSS.HS-PS2-5

How many electrodes are used for a 12 lead EKG?

• 10

• 12

• 6

• 8

The QR complex occurs:

• When the ventricles contract.

• When the heart rest after a contraction.

• When the atria contract.

• When the heart begins to beat from the pacemaker.

What does the T wave show?

• The contraction of the ventricles.

• The contraction of the atria.

• If the rhythm is normal.

• The relaxation of the heart.

Where does a U wave usually appear?

• Before the R wave

• After the T wave

• After the Q wave

• During the T wave

When does a U wave occur?

• There is no such things as a U wave.

• When the patient moves during the tracing.

• When a patient has a very low K+.

• When the machine is running too slow.

What is the normal standard?

• 15 mm

• 10 mm

• 20 ml

• 5mm

The term electrocardiograph is:

• The recording or tracing of the heart's activity.

• The heat sensitive EKG paper.

• The instrument used for recording the heart's activity.

• The augmented leads.

What does the P wave show?

• The heart getting ready to contract.

• The relaxing of the heart after contraction.

• The ventricular contraction.

• The atrial contractions.

What is a lead?

• The gel or pad that conducts electricity.

• The colored wires that are put on the patient's limbs.

• The plate that conducts electricity.

• The picture of the heart.