EKG Waves and Labeling

Front

What wave represents number 1?

Back

P wave

Front

What does the P wave represent?

Back

Atrial depolarization (contraction)

Front

What does the QRS complex represent?

Back

Ventricular depolarization

Front

What does the T wave represent?

Back

Ventricular repolarization

Front

What wave does number 2 represent?

Back

Q wave

Front

What is the function of the P wave in an EKG?

Back

Indicates the electrical activity associated with atrial contraction.

Front

What is the significance of the QRS complex in an EKG?

Back

Represents the electrical activity associated with ventricular contraction.

Front

What does the T wave indicate in an EKG?

Back

Represents the recovery phase of the ventricles (repolarization).

Front

How is the Q wave characterized in an EKG?

Back

It is the first negative deflection after the P wave.

Front

What is the normal duration of the QRS complex?

Back

Typically less than 0.12 seconds.