Electrocardiogram (ECG) Lead Placement Quiz

Take this quiz to master ECG lead placement! Explore limb leads, chest leads, and their significance in a standard 12-lead ECG.

#1

Which limb lead is commonly used as the reference or ground lead in a standard 12-lead ECG?

Lead I
Lead II
Lead III
Lead aVR
#2

In a standard 12-lead ECG, which leads are bipolar limb leads?

Lead I, Lead II, Lead III
Lead aVR, Lead aVL, Lead aVF
Lead V1, Lead V2, Lead V3
Lead V4, Lead V5, Lead V6
#3

Which electrode acts as the ground in the standard 12-lead ECG system?

Right Arm
Left Arm
Right Leg
Left Leg
#4

Which lead is commonly used to monitor electrical activity in the inferior wall of the heart?

Lead I
Lead II
Lead III
Lead aVR
#5

Which of the following represents the correct sequence of electrode placement for a standard 12-lead ECG?

Right Arm, Left Arm, Right Leg, Left Leg, Chest Leads
Right Arm, Right Leg, Left Arm, Left Leg, Chest Leads
Right Leg, Left Leg, Right Arm, Left Arm, Chest Leads
Left Arm, Right Arm, Right Leg, Left Leg, Chest Leads
#6

Which chest lead is positioned at the fifth intercostal space in the midclavicular line?

V1
V2
V3
V4
#7

In a standard 12-lead ECG, which leads are considered precordial or chest leads?

Lead I, Lead II, Lead III
Lead aVR, Lead aVL, Lead aVF
Lead V1 - V6
Lead V7 - V9
#8

Which electrode serves as the positive electrode for Lead III in the standard 12-lead ECG system?

Right Arm
Left Arm
Right Leg
Left Leg
#9

What is the significance of Lead aVR in the standard 12-lead ECG?

It represents the right arm electrode.
It records the electrical activity between the right arm and the left leg.
It's often used to monitor the electrical activity of the inferior wall of the heart.
It's an augmented limb lead that views the heart from the perspective of the right arm.
#10

What does Lead aVF in a standard 12-lead ECG primarily represent?

Left ventricular hypertrophy
Electrical activity from the right arm toward the left leg
Inferior wall of the heart
High lateral wall of the left ventricle
#11

Which electrode serves as the ground in the standard 12-lead ECG system?

Right Arm
Left Arm
Right Leg
Left Leg
#12

What does Lead aVR in a standard 12-lead ECG primarily represent?

Left ventricular hypertrophy
Electrical activity from the right arm toward the left leg
Inferior wall of the heart
High lateral wall of the left ventricle

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