Font size
Worksheets12 Lead ECGs
Total questions: 25
Worksheet time: 24mins
How many electrodes a typically used on a 12 lead ECG?
6
4
The LIMB electrodes are placed on which part of the body?
Chest
Abdomen
Arms and Legs
Neck and Shoulders
The PRECORDIAL electordes are placed on which part of the body?
Chest
Abdomen
Arms and Legs
Neck and Shoulders
Why is it important to prepare the skin before attaching electrodes for an ECG?
To prevent electrical interference from other devices
To improve electrode adhesion and signal quality
To ensure patient comfort during the test
To maintain a sterile environment
Which type of electrocardiograms (ECG) requires the use of 10 electrodes?
Resting ECG
Stress Test ECG
Ambulatory ECG
Telemetry ECG
Where are the limb electrodes placed during a Stress Test ECG?
Wrists & Ankles
Shoulders & Ankles
No electrodes are used on the arms & legs
Closer to the trunk of the body
Organize these options into the right categories
Skin Prep
Patient Identification
Patient lays in supine/semi fowler position
Remain still & avoid talking
Takes about 5-10 minutes
Vital signs are monitored
Diet restrictions
Educate patient & make them feel comfortable
Physical exertion
Which of the following should prompt immediate stopping of a stress test?
Moderate increase in heart rate
Gradual increase in respiratory rate
Drop in blood pressure with dizziness
Mild sweating
Match the following electrodes to their location
v1
4th ICS, right side of sternum
v2
4th ICS, left side of sternum
v4
5th ICS, midclavicular line
v5
5th ICS, anterior axillary line
v6
5th ICS, midaxillary line
Which lead is placed at the left midclavicular line in the 5th intercostal space?
v2
v4
v5
v6
Which two leads are placed in the 4th intercostal space?
v1 and v2
v3 and v4
v2 and v3
v5 and v6
Draw the precordial (v1-v6) electrodes on the diagram in their corresponding color.
Which mnemonic is used to remember the limb electrode colors on the RIGHT side of the patient?
Ride Your Green Bike On Pavement
White On The Right
Clouds Over Grass
Smoke Over Fire
Which mnemonic is used to remember the limb electrode colors on the LEFT side of the patient?
Ride Your Green Bike On Pavement
White On The Right
Clouds Over Grass
Smoke Over Fire
If a patient had a right arm amputation, where would the limb electrodes be placed?
Right & Left Wrist
Right Shoulder, Left Wrist
No arm electrodes will be used
Right & Left Shoulder
In a patient with dextrocardia, how should the precordial (chest) leads be adjusted for a 12-lead ECG?
No change; Keep in left side of chest
Skip precordial leads
Place them in a mirrored position on the right side of the chest
Place them on the back instead of the chest
Label the limb leads on the diagram.
Lead II is a bipolar lead formed by the electrodes on the right arm and which other location?
Left arm
Left leg
Right leg
Chest
Organize these options into the right categories
Lead II
Lead III
aVF
v1
v2
v3
v4
Lead I
aVL
v5
v6
Label the augmented limb leads.
What does the “a” in aVR, aVL, and aVF stand for?
Augmented
Accurate
Anterior
Anatomical
Which leads are considered BIPOLAR?
Lead I, II, & III
avR, avL, avF
V1-V6
All of the above
Which leads are considered UNIPOLAR?
Lead I, II, & III
avR, avL, avF
V1-V6
All of the above
Which of the following leads are part of the frontal plane?
Leads I, II, III, aVR, aVL, aVF
Leads V1-V6
aVR, aVL, v1
V1-V4 only
Which of the following leads are considered part of the transverse (horizontal) plane?
aVR, aVL, aVF
V1, V2, V3, V4, V5, V6
I, II, III
aVR, I, V1
