Exam 13: The Standard 12 ECG System

On an ECG tracing,what is an isoelectric line called?

Of the precordial leads,which are considered to be the anterior leads?

How many electrodes are used in a 12 lead ECG?

Which portion of the ECG tracing represents total ventricular activity?

Which low voltage wave may become more prominent in the presence of electrolyte disturbances,heart disease,or certain medications?

Of the precordial leads,which are considered to be the lateral leads?

What does a flat ST segment usually indicate?

What is the term for two or more waveforms together on an ECG?

Which of the following are considered to be precordial leads? I.Lead I,II,III II.aVR,aVL,aVF III.V1,V2,V3,V4,V5,V6

Which leads monitor the electrical activity in the frontal plane of the heart? I.Limb leads II.Precordial leads III.Modified Chest Lead

Which limb leads are considered to be the left lateral leads?

When electrical impulses travel toward the positive electrode,what waveform would be recorded on the ECG tracing?

Of the limb leads,which leads are considered to be the inferior leads?

What portion of the RR interval does the QT interval normal compose?

What waveform is recorded on an ECG tracing when an electrical impulse travels perpendicular to the lead axis?

Which limb leads are unipolar leads?

What is the standard speed at which ECG systems run?

What does the "a" represent in the unipolar limb leads?

Which portion of an ECG tracing represents atrial depolarization?

When electrical impulses travel away from the positive electrode,what would be recorded on the ECG tracing?