ECG Basic Principles Quiz 1

Read the questions carefully and choose the best answer among the choices below.

ECG Basic Principles Quiz 1

Time limit: 0

Quiz Summary

0 of 10 questions completed

Questions:

The results of your practice test are waiting! Just fill in your email address in the box below, and we will share your results. You’ll only need to enter your email one time. After taking your next practice exam, you’ll receive your results as soon as you click on “Submit.”

Once you pass five practice tests, a 20% discount coupon will immediately be sent to the email address you provided.

Email*

You must specify an email address.

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading…

You must sign in or sign up to start the quiz.

You must first complete the following:

Results

Quiz complete. Results are being recorded.

Time has elapsed

Congratulations! You Passed.
You got 0 out of 0 correct and scored 0.

Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)

Earn a 20% Discount on Your Next Certification Course!

ACLScertification.org is proud to offer a 20% discount to students who successfully pass 5 of our practice tests in one sitting. Currently, you have passed 0 of the 5 required tests. Start testing your skills and earning your discount now in our Practice Exam Section.

0% Complete

Answered
Review

Question 1 of 10

1. Question
1. A 6-second ECG strip shows the following:

The heart rate for this rhythm is:
- a. 100 bpm
- b. 155 bpm
- c. 130 bpm
- d. 140 bpm
Correct

Incorrect
Question 2 of 10

2. Question
2. All myocardial cells are capable of being discharged because:
- a. All myocardial cells have a positive intracellular environment that allows sodium to leave the cell membrane via the sodium-potassium ATPase pump to cause an action potential.
- b. All myocardial cells are rich in ATP, and the process of dissociating a phosphate bond to form ADP produces an electrical current that creates an action potential.
- c. All myocardial cells have troponin and myosin capable of producing an electric gradient from the intracellular environment to the extracellular environment in the presence of calcium and ATP.
- d. All myocardial cells are polarized, and since they have more intracellular potassium, this causes them to be more negative than the extracellular environment. Thus, an influx of sodium will cause an action potential.
Correct

Incorrect
Question 3 of 10

3. Question
3. An electrocardiogram shows small Q waves and tall R waves in lead V1 in a patient with a normal heart. The significance of this finding is:
- a. The electrical impulse is measured from the SA downward and toward lead V1 in the right ventricle, making this a normal finding.
- b. Lead V1 should have tall R waves because the electrical impulse from the heart starts from the SA node and travels downward and away from lead V1.
- c. Lead V1 should have small R waves and deep S waves in the normal heart. Therefore, a misplacement of lead V1 should be considered.
- d. Lead V1 should show a downward deflection of the QRS complex because the impulse in the normal heart travels from the AV node toward the SA node. Hence, the impulse generated travels away from lead V1.
Correct

Incorrect
Question 4 of 10

4. Question
4. At times, foci within the heart may fire at a rate faster than the SA node rate and take over as the heart’s pacemaker. This is known as:
- a. Irritability
- b. Escape
- c. Torsades de pointes
- d. Wenckebach phenomenon
Correct

Incorrect
Question 5 of 10

5. Question
5. Atrioventricular blocks present prolonged PR intervals because there is a delay in the conduction of impulses through the AV node. What is the normal PR interval?
- a. 0.06–0.10 seconds
- b. 0.12–0.20 seconds
- c. 0.30–0.44 seconds
- d. 0.40–0.60 seconds
Correct

Incorrect
Question 6 of 10

6. Question
6. How long is a normal QRS interval?
- a. 0.10 seconds
- b. 0.20 seconds
- c. 0.30 seconds
- d. 0.40 seconds
Correct

Incorrect
Question 7 of 10

7. Question
7. The autonomic nervous system regulates the heart rate. Which part of the autonomic nervous system is responsible for increasing the conduction rate of the heart?
- a. Alpha receptors
- b. Beta receptors
- c. Sympathetic branch
- d. Parasympathetic branch
Correct

Incorrect
Question 8 of 10

8. Question
8. The heart’s electrical function is regulated by which one of the following cell structures?
- a. Mitochondria
- b. Endoplasmic reticulum
- c. Golgi bodies
- d. Sodium-potassium channel
Correct

Incorrect
Question 9 of 10

9. Question
9. The normal PR interval is:
- a. 40–120 milliseconds
- b. 80–200 milliseconds
- c. 120–200 milliseconds
- d. 200–300 milliseconds
Correct

Incorrect
Question 10 of 10

10. Question
10. The QRS complex of an ECG tracing spans 4 small squares. What can you conclude from this finding?
- a. The QRS interval is normal.
- b. The QRS interval is too fast.
- c. The QRS interval is too slow.
- d. There is an irregular rhythm.
Correct

Incorrect

More Practice Tests

Sinus Rhythms Quiz

Take the Test

Rhythm Strip Identification Quiz 2

Take the Test

ECG Basic Principles Quiz 1

ECG Basic Principles Quiz 1

Quiz Summary

Results

Categories

Earn a 20% Discount on Your Next Certification Course!

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question

7. Question

8. Question

9. Question

10. Question

More Practice Tests