Question

What type of deflection in the ECG trace does a wave of depolarisation traveling perpendicular to a lead result in?

Option 1: Positive deflection
Option 2: Negative deflection
Option 3: Biphasic deflection
Option 4: No deflection

Answer 1

A wave of depolarization traveling perpendicular to a lead results in a positive deflection in the ECG trace.

Step-by-step explanation:

When a wave of depolarization travels perpendicular to a lead, it results in a positive deflection in the ECG trace.

The ECG measures the electrical activity of the heart. During depolarization, the outer surface of the heart changes from positive to negative, and this change is represented by a voltage vector.

When the wave of depolarization travels perpendicular to a lead, the vector points in a direction that causes a positive deflection in the ECG trace.