CCT Exam Practice - Performing Resting ECG Questions
With Accurate Answers | Latest Update 2026\2027
1. Where is the positive pole located for lead aVF in an ECG?
Chest
Right arm
Left arm
Left leg
2. For which of the following patients might a physician order a right-side 12-
lead ECG?
A patient in a permanent fetal position
A geriatric patient
A pregnant patient
A patient with dextrocardia
3. The positive electrodes on the 5th intercostal space, left midclavicular line is:
V4
V6
V3
V1
4. If a patient presents with a very high heart rate, what adjustment should be
made to the ECG machine to aid in interpretation, and why?
Change the lead placement to improve accuracy.
Use a different type of lead for better results.
, Increase the chart speed to better visualize the heart rhythm.
Decrease the chart speed to reduce the amount of data.
5. Which leads need to be switched over to the right side of the chest when
obtaining a right sided 12 Lead?
RR and V1
V4 only
V1 and V2
V4, V5, and V6
6. What is one method to reduce somatic tremor artifact during an ECG
recording?
Plug ECG machine into a different electrical outlet.
Have patient place hands under buttocks, instructing him/her not to
move.
Replace loose electrodes and remove wire tension.
Move patient's bed away from electrical sources such as elevator.
7. In a patient with dextrocardia, how would you expect the ECG readings from
lead AVR to differ from those of a normal patient?
The ECG readings from lead AVR will remain unchanged regardless of
the patient's heart orientation.
The ECG readings from lead AVR may show a positive P wave and
QRS complex instead of the typical negative deflections.
The ECG readings from lead AVR will show no P wave and a flat QRS
complex.
, The ECG readings from lead AVR will show a significantly increased
amplitude of the P wave.
8. If a patient has a lead aVF positioned incorrectly, what potential impact could
this have on the ECG interpretation?
It would have no effect on the ECG results.
It would only affect the heart rate measurement.
It could lead to misinterpretation of the heart's electrical activity.
It would improve the accuracy of the ECG readings.
9. Describe the importance of skin preparation in the context of obtaining
accurate ECG results.
Skin preparation is only required for pediatric patients.
Proper skin preparation minimizes artifacts and ensures good
electrode contact.
Skin preparation is not important for ECG accuracy.
Skin preparation only affects the comfort of the patient.
10. Describe the significance of the AVR lead in an ECG and why it typically
shows a negative P wave and QRS complex.
The AVR lead is used primarily for pediatric patients, which alters the
typical waveforms seen.
The AVR lead is positioned to capture the electrical activity of the
right atrium, which causes a positive deflection.
The AVR lead is oriented in a way that it views the heart from the
right shoulder, leading to a negative P wave and QRS complex due
to the heart's electrical activity moving away from this lead.
, The AVR lead measures the electrical activity of the left ventricle,
resulting in a positive P wave and QRS complex.
11. If a patient has dextrocardia, how would you adjust the placement of lead V5
during an ECG?
Place lead V5 on the right midclavicular line at the fourth intercostal
space.
Leave lead V5 in its standard position on the left side.
Place lead V5 on the right anterior axillary line at the fifth
intercostal space.
Place lead V5 on the left anterior axillary line at the sixth intercostal
space.
12. Which EKG lead placement is associated with the lateral wall of the heart?
Lead V1
Lead I
Lead V5
Lead II
13. Describe the significance of the V4 electrode placement in an ECG and its
anatomical landmark.
The V4 electrode is used exclusively for pediatric patients.
The V4 electrode is placed on the right side of the chest to monitor
right heart activity.
The V4 electrode is placed at the fifth intercostal space along the
left midclavicular line, which helps in assessing the heart's
electrical activity from the anterior view.
With Accurate Answers | Latest Update 2026\2027
1. Where is the positive pole located for lead aVF in an ECG?
Chest
Right arm
Left arm
Left leg
2. For which of the following patients might a physician order a right-side 12-
lead ECG?
A patient in a permanent fetal position
A geriatric patient
A pregnant patient
A patient with dextrocardia
3. The positive electrodes on the 5th intercostal space, left midclavicular line is:
V4
V6
V3
V1
4. If a patient presents with a very high heart rate, what adjustment should be
made to the ECG machine to aid in interpretation, and why?
Change the lead placement to improve accuracy.
Use a different type of lead for better results.
, Increase the chart speed to better visualize the heart rhythm.
Decrease the chart speed to reduce the amount of data.
5. Which leads need to be switched over to the right side of the chest when
obtaining a right sided 12 Lead?
RR and V1
V4 only
V1 and V2
V4, V5, and V6
6. What is one method to reduce somatic tremor artifact during an ECG
recording?
Plug ECG machine into a different electrical outlet.
Have patient place hands under buttocks, instructing him/her not to
move.
Replace loose electrodes and remove wire tension.
Move patient's bed away from electrical sources such as elevator.
7. In a patient with dextrocardia, how would you expect the ECG readings from
lead AVR to differ from those of a normal patient?
The ECG readings from lead AVR will remain unchanged regardless of
the patient's heart orientation.
The ECG readings from lead AVR may show a positive P wave and
QRS complex instead of the typical negative deflections.
The ECG readings from lead AVR will show no P wave and a flat QRS
complex.
, The ECG readings from lead AVR will show a significantly increased
amplitude of the P wave.
8. If a patient has a lead aVF positioned incorrectly, what potential impact could
this have on the ECG interpretation?
It would have no effect on the ECG results.
It would only affect the heart rate measurement.
It could lead to misinterpretation of the heart's electrical activity.
It would improve the accuracy of the ECG readings.
9. Describe the importance of skin preparation in the context of obtaining
accurate ECG results.
Skin preparation is only required for pediatric patients.
Proper skin preparation minimizes artifacts and ensures good
electrode contact.
Skin preparation is not important for ECG accuracy.
Skin preparation only affects the comfort of the patient.
10. Describe the significance of the AVR lead in an ECG and why it typically
shows a negative P wave and QRS complex.
The AVR lead is used primarily for pediatric patients, which alters the
typical waveforms seen.
The AVR lead is positioned to capture the electrical activity of the
right atrium, which causes a positive deflection.
The AVR lead is oriented in a way that it views the heart from the
right shoulder, leading to a negative P wave and QRS complex due
to the heart's electrical activity moving away from this lead.
, The AVR lead measures the electrical activity of the left ventricle,
resulting in a positive P wave and QRS complex.
11. If a patient has dextrocardia, how would you adjust the placement of lead V5
during an ECG?
Place lead V5 on the right midclavicular line at the fourth intercostal
space.
Leave lead V5 in its standard position on the left side.
Place lead V5 on the right anterior axillary line at the fifth
intercostal space.
Place lead V5 on the left anterior axillary line at the sixth intercostal
space.
12. Which EKG lead placement is associated with the lateral wall of the heart?
Lead V1
Lead I
Lead V5
Lead II
13. Describe the significance of the V4 electrode placement in an ECG and its
anatomical landmark.
The V4 electrode is used exclusively for pediatric patients.
The V4 electrode is placed on the right side of the chest to monitor
right heart activity.
The V4 electrode is placed at the fifth intercostal space along the
left midclavicular line, which helps in assessing the heart's
electrical activity from the anterior view.
