EKG NHA Practice Test 1 2026 (166 Q&A) | Latest Update
2026 | 100% Accurate Answers | Comprehensive Exam
Prep
1. What device is commonly used to monitor a patient's heart activity over an
extended period?
Chemical stress test
Cardiac inotropic medication
Holter monitor
Vasodilator medication
2. Which of the following methods should an egg tech use to calculate a
patient's heart rate from the leg tracing?
Count the number of small boxes in two cardiac cycles
Count the number of large boxes between P and T waves
Calculate the mean rate and divide 1500 by that rate
Divide 300 by the number of large boxes between two R waves
3. If a technician mistakenly places the V6 electrode in the wrong location, what
potential impact could this have on the EKG results?
It would only affect the patient's comfort level.
It could lead to inaccurate EKG readings and misinterpretation of
the patient's cardiac condition.
It could improve the clarity of the EKG readings.
It would have no effect on the EKG results.
4. What should an EKG technician do if they observe an unexpected arrhythmia
, during an exercise stress test?
Continue the test without interruption
Ignore the arrhythmia if the patient is asymptomatic
Document the arrhythmia after the test is completed
Report unexpected arrhythmia during the test
5. Why is dizziness considered a critical finding during an exercise stress test?
Dizziness suggests the patient is dehydrated and needs water.
Dizziness is a normal response to exercise and can be ignored.
Dizziness is unrelated to the results of the stress test.
Dizziness indicates potential cardiovascular distress and requires
immediate attention.
6. The ECG technician is taking the patient's vital signs prior to performing the
ECG and gets a blood pressure of 76/43. Which of the following should the
technician have knowledge of?
The normal blood pressure would be considered 90/60 mm/Hg to
120/80 mm/Hg
A blood pressure of 76/43 would be hypotension and should be
report immediately to the nurse
Both A and B
None of the above
7. If an EKG technician overhears a colleague making slanderous remarks about
a patient, what steps should they take to address the situation?
Ignore the comments to avoid conflict.
Make a note of the comments for future reference.
, Report the incident to a supervisor or appropriate authority.
Confront the colleague directly and argue with them.
8. Describe the significance of placing a heart card monitoring device over the
middle to lower part of the sternum for effective activation.
It is important to place the device over the left side of the chest to
monitor heart activity.
The placement is irrelevant as long as the device is worn on the chest.
The device should be placed over the manubrium to avoid
interference.
Placing the device over the middle to lower part of the sternum
ensures optimal contact with the heart's electrical signals for
accurate monitoring.
9. Describe the significance of checking the right leg first when leads are not
reading during an EKG procedure.
The right leg is used to measure blood pressure during EKG.
The right leg is less important than the arms in EKG readings.
The right leg is typically the ground lead, and issues with it can
affect the readings of all leads.
The right leg is where the heart's electrical signals are strongest.
10. What characteristic of the QRS complex is expected in a patient with a
ventricular pacemaker?
inverted QRS
narrow QRS
normal QRS
, wide QRS
11. A patient calls the clinic complaining of chest pain, shortness of breath, what
instructions should be given to the patient?
Call 911
Go to the ER within the next two hours
Come to the clinic
Call the clinic in 1 hour if pain not relieved
12. What is the reason that resting electrodes should not be used for more than
two consecutive EKG tracings?
the electrodes cannot conduct the right signal after two EKG tracings
the electrodes will not conduct accurately after two EKG tracings
the electrodes will not re-adhere to the skin after being removed
the electrodes need to be cleaned after two EKG tracings
13. Describe the significance of proper electrode placement in a 12 lead EKG
for pediatric patients.
Electrode placement does not influence the interpretation of EKG
results.
Proper electrode placement ensures accurate EKG readings and
reflects the heart's electrical activity correctly.
Electrode placement is less critical in pediatric patients than in adults.
Electrode placement only affects the comfort of the patient.
14. What is the recommended storage method for EKG electrodes when they
are not in use?
in an open plastic bag
2026 | 100% Accurate Answers | Comprehensive Exam
Prep
1. What device is commonly used to monitor a patient's heart activity over an
extended period?
Chemical stress test
Cardiac inotropic medication
Holter monitor
Vasodilator medication
2. Which of the following methods should an egg tech use to calculate a
patient's heart rate from the leg tracing?
Count the number of small boxes in two cardiac cycles
Count the number of large boxes between P and T waves
Calculate the mean rate and divide 1500 by that rate
Divide 300 by the number of large boxes between two R waves
3. If a technician mistakenly places the V6 electrode in the wrong location, what
potential impact could this have on the EKG results?
It would only affect the patient's comfort level.
It could lead to inaccurate EKG readings and misinterpretation of
the patient's cardiac condition.
It could improve the clarity of the EKG readings.
It would have no effect on the EKG results.
4. What should an EKG technician do if they observe an unexpected arrhythmia
, during an exercise stress test?
Continue the test without interruption
Ignore the arrhythmia if the patient is asymptomatic
Document the arrhythmia after the test is completed
Report unexpected arrhythmia during the test
5. Why is dizziness considered a critical finding during an exercise stress test?
Dizziness suggests the patient is dehydrated and needs water.
Dizziness is a normal response to exercise and can be ignored.
Dizziness is unrelated to the results of the stress test.
Dizziness indicates potential cardiovascular distress and requires
immediate attention.
6. The ECG technician is taking the patient's vital signs prior to performing the
ECG and gets a blood pressure of 76/43. Which of the following should the
technician have knowledge of?
The normal blood pressure would be considered 90/60 mm/Hg to
120/80 mm/Hg
A blood pressure of 76/43 would be hypotension and should be
report immediately to the nurse
Both A and B
None of the above
7. If an EKG technician overhears a colleague making slanderous remarks about
a patient, what steps should they take to address the situation?
Ignore the comments to avoid conflict.
Make a note of the comments for future reference.
, Report the incident to a supervisor or appropriate authority.
Confront the colleague directly and argue with them.
8. Describe the significance of placing a heart card monitoring device over the
middle to lower part of the sternum for effective activation.
It is important to place the device over the left side of the chest to
monitor heart activity.
The placement is irrelevant as long as the device is worn on the chest.
The device should be placed over the manubrium to avoid
interference.
Placing the device over the middle to lower part of the sternum
ensures optimal contact with the heart's electrical signals for
accurate monitoring.
9. Describe the significance of checking the right leg first when leads are not
reading during an EKG procedure.
The right leg is used to measure blood pressure during EKG.
The right leg is less important than the arms in EKG readings.
The right leg is typically the ground lead, and issues with it can
affect the readings of all leads.
The right leg is where the heart's electrical signals are strongest.
10. What characteristic of the QRS complex is expected in a patient with a
ventricular pacemaker?
inverted QRS
narrow QRS
normal QRS
, wide QRS
11. A patient calls the clinic complaining of chest pain, shortness of breath, what
instructions should be given to the patient?
Call 911
Go to the ER within the next two hours
Come to the clinic
Call the clinic in 1 hour if pain not relieved
12. What is the reason that resting electrodes should not be used for more than
two consecutive EKG tracings?
the electrodes cannot conduct the right signal after two EKG tracings
the electrodes will not conduct accurately after two EKG tracings
the electrodes will not re-adhere to the skin after being removed
the electrodes need to be cleaned after two EKG tracings
13. Describe the significance of proper electrode placement in a 12 lead EKG
for pediatric patients.
Electrode placement does not influence the interpretation of EKG
results.
Proper electrode placement ensures accurate EKG readings and
reflects the heart's electrical activity correctly.
Electrode placement is less critical in pediatric patients than in adults.
Electrode placement only affects the comfort of the patient.
14. What is the recommended storage method for EKG electrodes when they
are not in use?
in an open plastic bag
