EKG Basics Flashcard

Front

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

Back

To indicate atrial depolarization

Front

What does a flat isoelectric line in an EKG indicate?

Back

No electrical activity

Front

What is the name of the segment between the end of the p wave and the start of the QRS complex?

Back

PR segment

Front

Where is the SA node located?

Back

Right atrium near the entry of the superior vena cava

Front

What is the function of the AV node in an EKG?

Back

To slow down the conduction of electrical activity

Front

What does an upward deflection in an EKG indicate?

Back

Positive charges moving towards the positive electrode

Front

What is the name of the interval from the beginning of the p wave to the end of the PR segment?

Back

PR interval

Front

What is the main vector of atrial depolarization in an EKG?

Back

Downward and leftward towards the AV node

Front

What is the function of the SA node in an EKG?

Back

To generate action potentials

Front

What does a downward deflection in an EKG indicate?

Back

Negative charges moving away from the positive electrode