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EKG technicians aren’t required to be certified by the government, but many employers do require it.
Becoming certified can also help you get better pay or land a job in a competitive area.
To get your certification, you’ll need to pass an EKG exam.
Before you pay the fee and take the exam, you should be sure that you can pass the test.
Our EKG technician practice test features questions about the anatomy and physiology of the heart, electrocardiography equipment, and interpreting of EKG rhythms and waveforms.
EKG Technician Certification Practice Test
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Your answers are highlighted below.
Question 1 |
What is the standard paper speed for most EKG recordings?
25 mm/s | |
50 mm/s | |
75 mm/s | |
100 mm/s |
Question 2 |
Which lead placement is commonly used for the standard 12-lead EKG?
Limb leads | |
Augmented leads | |
Chest leads | |
Precordial leads |
Question 3 |
What does the P-wave represent in an EKG waveform?
Atrial depolarization | |
Ventricular depolarization | |
Atrial repolarization | |
Ventricular repolarization |
Question 4 |
In Lead II, which direction does the positive electrode face?
Right arm | |
Left arm | |
Right leg | |
Left leg |
Question 5 |
What is the normal duration of the PR interval in seconds?
0.06-0.10 s | |
0.10-0.20 s | |
0.20-0.30 s | |
0.30-0.40 s |
Question 6 |
Which of the following conditions is associated with a prolonged QT interval?
Bradycardia | |
Atrial fibrillation | |
Hyperkalemia | |
Long QT syndrome |
Question 7 |
What does the QRS complex represent on an EKG?
Atrial depolarization | |
Ventricular depolarization | |
Atrial repolarization | |
Ventricular repolarization |
Question 8 |
Which lead is often used to monitor the electrical activity of the inferior wall of the heart?
Lead I | |
Lead II | |
Lead III | |
Lead aVR |
Question 9 |
What is the normal range for the heart rate (HR) in adults?
60-100 bpm | |
80-120 bpm | |
100-140 bpm | |
120-160 bpm |
Question 10 |
In a normal sinus rhythm, what is the rate of atrial depolarization?
60-100 bpm | |
40-60 bpm | |
20-40 bpm | |
100-140 bpm |
Question 11 |
Which electrolyte imbalance may lead to peaked T-waves on an EKG?
Hypokalemia | |
Hyperkalemia | |
Hyponatremia | |
Hypercalcemia |
Question 12 |
What does the ST segment represent on an EKG?
Atrial depolarization | |
Ventricular depolarization | |
Atrial repolarization | |
Ventricular repolarization |
Question 13 |
Which lead is used to monitor the electrical activity of the lateral wall of the heart?
Lead I | |
Lead II | |
Lead aVL | |
Lead aVF |
Question 14 |
What is the primary purpose of the EKG paper grid?
To measure time intervals | |
To measure voltage amplitudes | |
To provide a baseline for the EKG waveform | |
To calibrate the EKG machine |
Question 15 |
Which of the following is a common artifact on an EKG caused by patient movement?
Baseline wandering | |
AC interference | |
Somatic tremor | |
Lead reversal |
Question 16 |
What is the normal duration of the QRS complex in seconds?
0.04-0.10 s | |
0.10-0.20 s | |
0.20-0.30 s | |
0.30-0.40 s |
Question 17 |
What is the correct order of the cardiac conduction system?
SA node, AV node, Bundle of His, Purkinje fibers | |
AV node, SA node, Bundle of His, Purkinje fibers | |
Purkinje fibers, Bundle of His, AV node, SA node | |
Bundle of His, SA node, Purkinje fibers, AV node |
Question 18 |
Which lead is often used to monitor the electrical activity of the septal wall of the heart?
Lead I | |
Lead II | |
Lead aVR | |
Lead V1 |
Question 19 |
In which lead is the QRS complex normally mostly negative?
Lead I | |
Lead II | |
Lead aVR | |
Lead aVL |
Question 20 |
What is the primary purpose of the EKG gel or paste applied to the skin during lead placement?
To reduce impedance | |
To enhance electrical conduction | |
To prevent skin irritation | |
To improve patient comfort |
Question 21 |
What is the most common cause of artifact known as "AC interference" on an EKG?
Muscle contractions | |
Electrical equipment interference | |
Patient movement | |
Loose lead connections |
Question 22 |
Which lead is often used to monitor the electrical activity of the anterior wall of the heart?
Lead I | |
Lead II | |
Lead aVL | |
Lead V2 |
Question 23 |
What is the purpose of the T-wave on an EKG?
Atrial depolarization | |
Ventricular depolarization | |
Atrial repolarization | |
Ventricular repolarization |
Question 24 |
What is the normal duration of the QT interval in seconds?
0.06-0.10 s | |
0.10-0.20 s | |
0.20-0.40 s | |
0.40-0.60 s |
Question 25 |
Which lead is often used to monitor the electrical activity of the lateral wall of the left ventricle?
Lead I | |
Lead II | |
Lead aVL | |
Lead V5 |
Question 26 |
In which lead is the R-wave usually the tallest in a normal EKG?
Lead I | |
Lead II | |
Lead III | |
Lead aVL |
Question 27 |
What is the term for a rapid, chaotic, and disorganized heart rhythm on an EKG?
Bradycardia | |
Tachycardia | |
Fibrillation | |
Flutter |
Question 28 |
What is the primary purpose of the 6-second strip on an EKG?
To measure time intervals | |
To assess rhythm disturbances | |
To evaluate QRS duration | |
To calculate heart rate |
Question 29 |
What is the normal duration of the P-wave in seconds?
0.06-0.10 s | |
0.10-0.20 s | |
0.20-0.30 s | |
0.30-0.40 s |
Question 30 |
Which of the following EKG changes is associated with myocardial infarction?
ST segment elevation | |
ST segment depression | |
T-wave inversion | |
All of the above |
Once you are finished, click the button below. Any items you have not completed will be marked incorrect.
There are 30 questions to complete.
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