Nha Pct Ekg

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

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

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

A patient is admitted for diagnosis of an electrocardiogram abnormality. Which wave should the nurse plan care based upon changes in the patient’s ventricular depolarization?

• P wave

• QRS complex

• U wave

• T wave

After reviewing an electrocardiogram the nurse determines that an electrical impulse originated in a patient’s the sinoatrial node. What did the nurse see on this tracing?

• An upright T wave

• An inverted T wave

• A positive P wave before a QRS complex

• A negative P wave before a QRS complex

The nurse determines that a patient’s electrocardiogram is demonstrating normal sinus rhythm. What did the nurse observe to come to this conclusion? (Select all that apply.)

• Regular rhythm

• P wave before each QRS complex

• Wide QRS intervals

• Heart rate 88 beats per minute

The nurse is analyzing a client’s electrocardiogram tracing. Which of the following complexes is not normally seen on an electrocardiogram tracing?

• P wave

• QRS complex

• T wave

• U wave