NHA CET Practice Test
NHA CET Practice Test
Start today’s free 10-question NHA CET set with source-backed explanations, local progress, and a fresh rotation every morning.
Questions updated at Aug 22, 2026, 12:38 AM CDT
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Today's 10 NHA CET questions
Use this NHA CET practice test to review NHA Certified EKG Technician. Questions rotate daily and each answer links back to the source used to write it.
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Question 1 of 10
Objective Communicate appropriately with patients and the multidisciplinary health care team
1. Safety, Compliance, and Coordinated Patient Care (32 of 100 scored items)
An adult patient asks that a family member leave the room before chest electrodes are placed. The family member objects. What should the technician do?
Patient-centered communication includes respecting reasonable privacy preferences while preparing for electrode placement.
Concept tested:
Question 2 of 10
Objective Instruct patients on use of ambulatory monitoring and verify understanding
1. Safety, Compliance, and Coordinated Patient Care (32 of 100 scored items)
A patient with a standard external Holter monitor asks whether they can shower while wearing it. The device instructions state it must stay dry. What should the technician teach?
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Concept tested:
Question 3 of 10
Objective Verify that all leads were recorded
2. EKG Acquisition (44 of 100 scored items)
A paper jam stops the printout halfway through the precordial leads. The digital file also failed to save. What should the technician do?
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Concept tested:
Question 4 of 10
Objective Inspect waveform characteristics for symmetry, direction, and amplitude
3. EKG Analysis and Interpretation (24 of 100 scored items)
While reviewing a tracing, the technician notes a T wave has become inverted compared with the patient's prior tracing. What is the appropriate technician action?
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Concept tested:
Question 5 of 10
Objective Verify EKG machine settings (speed and gain)
2. EKG Acquisition (44 of 100 scored items)
The calibration indicator shows the machine is set to 5 mm/mV before a routine EKG. The standard ordered gain is 10 mm/mV. What should the technician do?
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Concept tested:
Question 6 of 10
Objective Calculate the patient's heart rate from the EKG tracing
3. EKG Analysis and Interpretation (24 of 100 scored items)
On a rhythm strip, the technician counts 8 QRS complexes in a 6-second interval. Using the 6-second method, what heart rate should be reported?
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Concept tested:
Question 7 of 10
Objective Adhere to infection-control practices
1. Safety, Compliance, and Coordinated Patient Care (32 of 100 scored items)
A patient has an actively bleeding skin tear near a limb-electrode site. The technician must assist with electrode placement after the care team addresses the wound. Which infection-control principle applies?
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Concept tested:
Question 8 of 10
Objective Identify and resolve artifacts from the tracing
2. EKG Acquisition (44 of 100 scored items)
A patient stops shivering, but the same lead still shows intermittent noise while the other channels are clean. What is the most logical next step?
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Concept tested:
Question 9 of 10
Objective Measure EKG intervals and waveforms
3. EKG Analysis and Interpretation (24 of 100 scored items)
At 25 mm/s, a QRS complex spans 2.5 small boxes. What duration should the technician document?
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Concept tested:
Question 10 of 10
Objective Determine the regularity of the patient's heart rhythm from the EKG tracing
3. EKG Analysis and Interpretation (24 of 100 scored items)
A rhythm strip shows R-R intervals that remain essentially equal across the tracing. How should the ventricular rhythm be described?
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Question 1 An adult patient asks that a family member leave the room before chest electrodes are placed. The family member objects. What should the technician do?
Answer choices
- A. Proceed with electrode placement while they argue
- B. Tell the patient privacy cannot be provided during an EKG
- C. Respect the patient's request for privacy and communicate the need for the family member to step out
- D. Let the family member decide because they brought the patient to the appointment
Correct answer
Respect the patient's request for privacy and communicate the need for the family member to step out
Patient-centered communication includes respecting reasonable privacy preferences while preparing for electrode placement.
Wrong-answer review
- A. Proceed with electrode placement while they argue: Incorrect. Proceeding through a conflict can undermine consent, comfort, and privacy.
- B. Tell the patient privacy cannot be provided during an EKG: Incorrect. Privacy safeguards are part of routine EKG care.
- D. Let the family member decide because they brought the patient to the appointment: Incorrect. A competent adult patient directs their own privacy preferences in this situation.
Extra learning features
Why this matters
Respecting a patient's privacy preference regarding a family member in the room during an EKG acquisition prevents potential discomfort and anxiety, fostering a trusting patient-technician relationship. This proactive approach minimizes patient distress, improving the overall experience and facilitating accurate data collection. Failure to respect this preference could lead to patient refusal of future studies. This is a critical element of patient-centered care and ethical practice.
Question 2 A patient with a standard external Holter monitor asks whether they can shower while wearing it. The device instructions state it must stay dry. What should the technician teach?
Answer choices
- A. Keep the monitor/electrodes dry unless the device instructions permit otherwise
- B. Shower normally because all ambulatory monitors are waterproof
- C. Remove the monitor for each shower and replace it wherever convenient before proceeding with the remainder of the ordered study
- D. Wrap only the recorder in a towel and allow the electrodes to get wet
Correct answer
Keep the monitor/electrodes dry unless the device instructions permit otherwise
Question 3 A paper jam stops the printout halfway through the precordial leads. The digital file also failed to save. What should the technician do?
Answer choices
- A. Correct the equipment issue and repeat the ordered acquisition
- B. Estimate the missing leads from the visible ones
- C. Tape a blank sheet to the partial tracing and label it complete
- D. Mount the partial strip without noting the missing data
Correct answer
Correct the equipment issue and repeat the ordered acquisition
Question 4 While reviewing a tracing, the technician notes a T wave has become inverted compared with the patient's prior tracing. What is the appropriate technician action?
Answer choices
- A. Document the T-wave inversion as probable ischemia and send the tracing for clinician confirmation
- B. Verify technical adequacy and report the objective waveform change
- C. Continue the study and report the T-wave change only if it remains present on the final tracing
- D. Change the gain and repeat the tracing to see whether the T-wave polarity matches the prior study
Correct answer
Verify technical adequacy and report the objective waveform change
Question 5 The calibration indicator shows the machine is set to 5 mm/mV before a routine EKG. The standard ordered gain is 10 mm/mV. What should the technician do?
Answer choices
- A. Set and verify the gain at 10 mm/mV before recording
- B. Move the chest electrodes closer together
- C. Increase the paper speed to compensate
- D. Leave the gain at 5 mm/mV because amplitude never affects interpretation
Correct answer
Set and verify the gain at 10 mm/mV before recording
Question 6 On a rhythm strip, the technician counts 8 QRS complexes in a 6-second interval. Using the 6-second method, what heart rate should be reported?
Answer choices
- A. 48 beats per minute
- B. 60 beats per minute
- C. 120 beats per minute
- D. 80 beats per minute
Correct answer
80 beats per minute
Question 7 A patient has an actively bleeding skin tear near a limb-electrode site. The technician must assist with electrode placement after the care team addresses the wound. Which infection-control principle applies?
Answer choices
- A. Use appropriate PPE based on the anticipated blood exposure and follow standard precautions
- B. Place the electrode directly over the bleeding area to avoid moving it
- C. Wear no PPE because EKG testing is noninvasive
- D. Wear a sterile surgical gown and mask for every EKG regardless of exposure as part of the routine workflow before the next patient
Correct answer
Use appropriate PPE based on the anticipated blood exposure and follow standard precautions
Question 8 A patient stops shivering, but the same lead still shows intermittent noise while the other channels are clean. What is the most logical next step?
Answer choices
- A. Increase gain for all leads
- B. Assume the remaining noise is still whole-body tremor
- C. Inspect that electrode, its connection, and the associated lead wire for a local technical problem
- D. Stop the entire test and activate an emergency response before proceeding with the remainder of the ordered study
Correct answer
Inspect that electrode, its connection, and the associated lead wire for a local technical problem
Question 9 At 25 mm/s, a QRS complex spans 2.5 small boxes. What duration should the technician document?
Answer choices
- A. 0.20 second
- B. 0.10 second
- C. 0.50 second
- D. 0.04 second
Correct answer
0.10 second
Question 10 A rhythm strip shows R-R intervals that remain essentially equal across the tracing. How should the ventricular rhythm be described?
Answer choices
- A. Progressively irregular
- B. Irregularly irregular
- C. Regular
- D. Unable to assess because P waves are not mentioned
Correct answer
Regular
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