ECGs

Front

Which lead is placed on the left arm during an ECG?

Back

Lead LA

Front

How should the patient be positioned for performing an ECG?

Back

Lying on the exam table

Front

What is the normal range for a resting heart rate in adults?

Back

60-100 bpm

Front

Which lead is placed on the right arm during an ECG?

Back

Lead RA

Front

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

Back

Ventricular depolarization

Front

What does the P wave represent in an ECG?

Back

Atrial depolarization

Front

What is the purpose of placing electrodes on the limbs during an ECG?

Back

To measure the electrical activity of the heart from different angles.

Front

What does the T wave represent in an ECG?

Back

Ventricular repolarization

Front

What is the standard paper speed for an ECG recording?

Back

25 mm/sec

Front

What is the role of the SA node in the heart?

Back

It acts as the natural pacemaker, initiating the heartbeat.