CVT Electrocardiography (ECG/EKG) Techniques

Question 1

Which lead configuration provides a view of the heart’s electrical activity in the frontal plane?

Accepted Answer

Standard limb and augmented leads

Answer

Precordial leads

Answer

Chest leads only

Answer

Einthoven’s triangle

Question 2

What does the P wave represent on an ECG?

Accepted Answer

Atrial depolarization

Answer

Ventricular depolarization

Answer

Ventricular repolarization

Answer

Atrial repolarization

Question 3

Which part of the ECG tracing corresponds to ventricular depolarization?

Accepted Answer

QRS complex

Answer

P wave

Answer

T wave

Answer

PR interval

Question 4

Which lead is typically used for rhythm monitoring in continuous ECG telemetry?

Accepted Answer

Lead II

Answer

Lead I

Answer

Lead III

Answer

Lead V1

Question 5

What is the correct placement for the V3 precordial lead?

Accepted Answer

Midway between V2 and V4

Answer

Fourth intercostal space, right sternal border

Answer

Fifth intercostal space, midclavicular line

Answer

Directly on the sternum

Question 6

Which condition is indicated by a prolonged QT interval on an ECG?

Accepted Answer

Torsades de pointes

Answer

Atrial fibrillation

Answer

Ventricular fibrillation

Answer

Bundle branch block