CMA EKG Quiz

What is the purpose of the p wave in an EKG?

• To indicate ventricular depolarization

• To indicate atrial depolarization

• To indicate atrial repolarization

• To indicate ventricular repolarization

Where is the SA node located?

• Right atrium near the entry of the superior vena cava

• Left atrium

• Right ventricle

• Top of the interventricular septum

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

The nurse is determining the functioning of a patient’s sinoatrial node. How many times per minute should the nurse expect the node to normally fire?

• 20 to 40

• 25 to 55

• 40 to 85

• 60 to 100

Where is the P wave located?

• A

• B

• C

• D

• E

What is considered the QRS complex?

• A, B, & C

• C, D, & E

• B, C, & D

• D & E

What is the T wave located?

• A

• B

• C

• D

• E

What does depolarization result in?

• relaxation

• contraction

• repulsion

• attraction

What does re-polarization result in?

• relaxation

• contraction

• attraction

• repulsion