EKG

The multichannel EKG machine is a recorder that monitors

• 10 leads

• 12 leads

• 12 & 5 leads

• 5 leads

Finish the following phrase The electrodes are placed on _______ of the body to record heart activity from_______________________.

• 10 leads

• 10 areas , 12 angles and planes

• 12 areas ,10 angles and planes

• 12 leads

Electrocardiograph paper can be displayed

• identified by darker lines

• represents 0.04 seconds

• graph or dot matrix format,with vertical and horizontal line or dots

• five small boxes horizontal

V3

• LEFT side of the chest, FIFTH intercostal space, midaxillary line

• RIGHT side of the sternum at the FOURTH intercostal space

• LEFT side of the chest, FIFTH intercostal space, anterior axillary line

• LEFT side of the chest, midway between V2 and V4

V4

• LEFT side of the chest, FIFTH intercostal space, midclavicular line

• LEFT side of the chest, midway between V2 and V4

• LEFT side of the chest, FIFTH intercostal space, midaxillary line

• LEFT side of the sternum, directly across from V1 at the FOURTH intercostal space

V6

• LEFT side of the chest, FIFTH intercostal space, midclavicular line

• LEFT side of the chest, FIFTH intercostal space, anterior axillary line

• LEFT side of the chest, FIFTH intercostal space, midaxillary line

• LEFT side of the sternum, directly across from V1 at the FOURTH intercostal space

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

Tags

NGSS.HS-PS2-5

The nurse is assessing the client’s electrocardiography (ECG). What does the P wave on the ECG tracing represent?

• Contraction of the atria

• Contraction of the ventricles

• Depolarization of the atria

• Depolarization of the ventricles

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