150 NHA EKG PRACTICE EXAM QUESTIONS 2026/2027 ||
COMPREHENSIVE ELECTROCARDIOGRAM TECHNICIAN
CERTIFICATION PREP WITH UPDATED CLINICAL
STANDARDS AND RHYTHM INTERPRETATION REVIEW ||
REAL NHA-STYLE QUESTIONS WITH VERIFIED DETAILED
ACCURATE ANSWERS LATEST EDITION || ELITE A+
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An EKG technician is preparing a patient for standard 12-lead EKG. Which of
the following is the correct placement for lead V4?
1. The fifth intercostal space at the midclavicular line
2. The fourth intercostal space at the midaxillary line
3. The fifth intercostal space at the midaxillary
4. The fourth intercostal space at the midclavicular line - THE CORRECT
ANSWER - Answer: 1. The fifth intercostal space at the midclavicular line.
Which of the following intervals should be used to determine the regularity of
ventricular depolarization?
1. P-P wave interval
2. R-R wave interval
3. QT interval
4. PR interval - THE CORRECT ANSWER - Answer: 2. R-R wave interval
Which of the following actions should the EKG technician take immediately after
attaching the telemetry lead wires to the electrodes?
1. Check a baseline EKG tracing for major clarity.
2. Check the wire colors and identifications to ensure attachments to the correct
electrodes.
3. Place the patient in the correct anatomical position.
4. Tape the lead wires to the patient's skin to prevent disconnection from the
electrodes. - THE CORRECT ANSWER - Answer: 2. Check the wire colors
and identifications to ensure attachments to the correct electrodes.
During an exercise stress test, an EKG technician notices that the patient appears
to be hyperventilating. Which of the following actions should the technician take
first?
1. Administer oxygen to the patient.
2. Slow down the test.
3. Stop the exercise portion of the test.
,4. Check the patient's respiratory rate. - THE CORRECT ANSWER -
Answer: 4. Check the patient's respiratory rate.
What is the name of the arrhythmia in the EKG tracing below?
1. Sinus arrhythmia
2. Ventricular fibrillation
3. Wandering atrial pacemaker
4. Atrial fibrillation - THE CORRECT ANSWER - Answer: 4. Atrial
Fibrillation
Which of the following is used to ensure the EKG machine is working properly?
1. Calibration
2. Gain
3. Artificial filter
4. Speed - THE CORRECT ANSWER - Answer: 1. Calibration
An EKG technician is preparing a patient for a transtelephonic ambulatory
monitor. Which of the following monitors can the patient wear for 30 days or
longer and can record cardiac event information from before, during, and after an
episode?
1. Loop-memory monitor
2. Post-symptom event monitor
3. Holter monitor
4. Telemetry monitor - THE CORRECT ANSWER - Answer: 1. Loop-
memory monitor
When an EKG technician is obtaining a pulse from a patient, which of the
following terms should the technician use to document the rhythm of the pulse?
1. Weak
2. Strong
3. Bounding
4. Irregular - THE CORRECT ANSWER - Answer: 4. Irregular
Into which of the following positions should the EKG technician assist a patient
to undergo a standard 12-lead EKG?
1. Supine
2. Lithotomy
3. Sims
4. Prone - THE CORRECT ANSWER - Answer: 1. Supine
, An EKG technician is preparing to transport a patient for an EKG. The patient is
prescribed droplet precautions. Which of the following personal protective
equipment (PPE) should the technician apply to the patient?
1. Gloves
2. Gown
3. Simple face mask
4. N95 respirator - THE CORRECT ANSWER - Answer: 3. Simple face
mask
Which of the following is the electrode charge combination for the limb leads for
a standard 12-lead EKG?
1. Right arm negative pole, left arm positive pole, and left leg positive pole
2. Right arm negative pole, left arm positive pole, and left leg negative pole
3. Right arm positive pole, left arm negative pole, and left leg negative pole
4. Right arm positive pole, left arm positive pole, and left leg negative pole -
THE CORRECT ANSWER - Answer: 1. Right arm negative pole, left arm
positive pole, and left leg positive pole
An EKG technician is performing a standard 12-lead EKG for a patient who has
a below-the-knee amputation of the left leg. The technician should modify and
document the lead placement for this patient in which of the following ways?
1. Eliminate placing the lower extremity limb leads entirely.
2. Place the left lower extremity lead on the upper abdomen.
3. Place the lower left extremity lead on the left groin.
4. Place the lower left extremity lead on the right lower leg. - THE CORRECT
ANSWER - Answer: 3. Place the lower left extremity lead on the left groin.
While performing a 5-lead EKG, an EKG technician notices that lead II and lead
III are not yielding a reading. Which of the following limbs should the technician
check to correct the error?
1. Right arm
2. Left arm
3. Right leg
4. Left leg - THE CORRECT ANSWER - Answer: 4. Left leg
An EKG technician should recognize that the Purkinje fibers serve which of the
following purposes?
1. Initiate electrical impulses in the heart
2. Conduct electrical impulses from the AV node
3. Transfer electrical impulses from the atria to the Bundle of HIS
COMPREHENSIVE ELECTROCARDIOGRAM TECHNICIAN
CERTIFICATION PREP WITH UPDATED CLINICAL
STANDARDS AND RHYTHM INTERPRETATION REVIEW ||
REAL NHA-STYLE QUESTIONS WITH VERIFIED DETAILED
ACCURATE ANSWERS LATEST EDITION || ELITE A+
PREMIUM QUALITY GUARANTEED
An EKG technician is preparing a patient for standard 12-lead EKG. Which of
the following is the correct placement for lead V4?
1. The fifth intercostal space at the midclavicular line
2. The fourth intercostal space at the midaxillary line
3. The fifth intercostal space at the midaxillary
4. The fourth intercostal space at the midclavicular line - THE CORRECT
ANSWER - Answer: 1. The fifth intercostal space at the midclavicular line.
Which of the following intervals should be used to determine the regularity of
ventricular depolarization?
1. P-P wave interval
2. R-R wave interval
3. QT interval
4. PR interval - THE CORRECT ANSWER - Answer: 2. R-R wave interval
Which of the following actions should the EKG technician take immediately after
attaching the telemetry lead wires to the electrodes?
1. Check a baseline EKG tracing for major clarity.
2. Check the wire colors and identifications to ensure attachments to the correct
electrodes.
3. Place the patient in the correct anatomical position.
4. Tape the lead wires to the patient's skin to prevent disconnection from the
electrodes. - THE CORRECT ANSWER - Answer: 2. Check the wire colors
and identifications to ensure attachments to the correct electrodes.
During an exercise stress test, an EKG technician notices that the patient appears
to be hyperventilating. Which of the following actions should the technician take
first?
1. Administer oxygen to the patient.
2. Slow down the test.
3. Stop the exercise portion of the test.
,4. Check the patient's respiratory rate. - THE CORRECT ANSWER -
Answer: 4. Check the patient's respiratory rate.
What is the name of the arrhythmia in the EKG tracing below?
1. Sinus arrhythmia
2. Ventricular fibrillation
3. Wandering atrial pacemaker
4. Atrial fibrillation - THE CORRECT ANSWER - Answer: 4. Atrial
Fibrillation
Which of the following is used to ensure the EKG machine is working properly?
1. Calibration
2. Gain
3. Artificial filter
4. Speed - THE CORRECT ANSWER - Answer: 1. Calibration
An EKG technician is preparing a patient for a transtelephonic ambulatory
monitor. Which of the following monitors can the patient wear for 30 days or
longer and can record cardiac event information from before, during, and after an
episode?
1. Loop-memory monitor
2. Post-symptom event monitor
3. Holter monitor
4. Telemetry monitor - THE CORRECT ANSWER - Answer: 1. Loop-
memory monitor
When an EKG technician is obtaining a pulse from a patient, which of the
following terms should the technician use to document the rhythm of the pulse?
1. Weak
2. Strong
3. Bounding
4. Irregular - THE CORRECT ANSWER - Answer: 4. Irregular
Into which of the following positions should the EKG technician assist a patient
to undergo a standard 12-lead EKG?
1. Supine
2. Lithotomy
3. Sims
4. Prone - THE CORRECT ANSWER - Answer: 1. Supine
, An EKG technician is preparing to transport a patient for an EKG. The patient is
prescribed droplet precautions. Which of the following personal protective
equipment (PPE) should the technician apply to the patient?
1. Gloves
2. Gown
3. Simple face mask
4. N95 respirator - THE CORRECT ANSWER - Answer: 3. Simple face
mask
Which of the following is the electrode charge combination for the limb leads for
a standard 12-lead EKG?
1. Right arm negative pole, left arm positive pole, and left leg positive pole
2. Right arm negative pole, left arm positive pole, and left leg negative pole
3. Right arm positive pole, left arm negative pole, and left leg negative pole
4. Right arm positive pole, left arm positive pole, and left leg negative pole -
THE CORRECT ANSWER - Answer: 1. Right arm negative pole, left arm
positive pole, and left leg positive pole
An EKG technician is performing a standard 12-lead EKG for a patient who has
a below-the-knee amputation of the left leg. The technician should modify and
document the lead placement for this patient in which of the following ways?
1. Eliminate placing the lower extremity limb leads entirely.
2. Place the left lower extremity lead on the upper abdomen.
3. Place the lower left extremity lead on the left groin.
4. Place the lower left extremity lead on the right lower leg. - THE CORRECT
ANSWER - Answer: 3. Place the lower left extremity lead on the left groin.
While performing a 5-lead EKG, an EKG technician notices that lead II and lead
III are not yielding a reading. Which of the following limbs should the technician
check to correct the error?
1. Right arm
2. Left arm
3. Right leg
4. Left leg - THE CORRECT ANSWER - Answer: 4. Left leg
An EKG technician should recognize that the Purkinje fibers serve which of the
following purposes?
1. Initiate electrical impulses in the heart
2. Conduct electrical impulses from the AV node
3. Transfer electrical impulses from the atria to the Bundle of HIS
