Certified EKG Technician Exam Practice – 150 Questions and Answers on ECG Interpretation, Lead
Placement, Stress Testing | CET Certification NHA | 2025–2026
when should the assistant reduce the speed to 50mm/ second? - (ANSWER)when a patient has a fast
heart rate
when are 10mm/ second and 5mm/second used? - (ANSWER)for patients that have slow heart rates
During a 5-lead EKG, lead 2 and 3 are not yielding a reading, what limbs should the technician check? -
(ANSWER)left leg
what describes a pulse oximetry of 88% - (ANSWER)hypoxemia
a thin spike before the P wave indicates that a pacemaker has been implanted to pace what? -
(ANSWER)atria
which locations is used for a patient's apical pulse? - (ANSWER)between the fifth and sixth ribs, at the
left midclavicular line
if having trouble visualizing the patients chest movement, what actions should the technician take to
obtain an accurate respiratory rate for the patient? - (ANSWER)place a hand on the middle of the
patients back to count the respirations
what intervals should be used to determine the regularity of ventricular depolarization? - (ANSWER)R-R
wave interval
when placing electrodes on the patients for telemetry, what locations should an EKG technician place
the ground electrode? - (ANSWER)on the right lower leg
what findings should indicate to the technician that the patient is experiencing an adverse reaction? -
(ANSWER)report of tingling sensations in the lower extremities
an EKG technician notices an accelerated idioventricular rhythm on a tracing, what actions should the
technician take next? - (ANSWER)call for help and stay with the patient
, Certified EKG Technician Exam Practice – 150 Questions and Answers on ECG Interpretation, Lead
Placement, Stress Testing | CET Certification NHA | 2025–2026
an EKG technician observes ST segment depression and T wave inversion in multiple leads on a patient's
EKG, what should the technician suspect? - (ANSWER)myocardial ischemia
an EKG technician is working with a patient who has a below-the-knee amputation of the left leg, what
location should the technician place the right leg electrode? - (ANSWER)on the lower right abdomen
an EKG technician is preparing to perform a 12-lead EKG for a patient who has dextrocardia, what
location should the technician place the electrode for lead V1? - (ANSWER)left sternal border, fourth
intercostal space
when evaluating a standard 12-lead EKG tracing, what electrical activity of the septal wall is recorded by
what leads? - (ANSWER)leads V1 and V2
an EKG technician is caring for a patient who is experiencing heart palpitations, what interventions
should the technician expect the provider to prescribe? - (ANSWER)holter monitor
what is the most accurate for an EKG technician to sue when measuring a patient's body temperature? -
(ANSWER)temporal
an EKG technician is performing a posterior 12-lead EKG for patient, what leads should the technician
place along the paraspinous border? - (ANSWER)lead V9
after completing a standard 12-lead EKG on a patient, what action should the technician take next? -
(ANSWER)check that the machine is free from artifacts and then disconnect the patient from the
machine
an EKG technician should recognize that what signs are often present when a patient is experiencing
ventricular tachycardia? - (ANSWER)multiple premature ventricular contractions in a row
when preparing a patient for an exercise test, what leads should the technician place on the right lower
side of the anterior torso? - (ANSWER)lead RL
Placement, Stress Testing | CET Certification NHA | 2025–2026
when should the assistant reduce the speed to 50mm/ second? - (ANSWER)when a patient has a fast
heart rate
when are 10mm/ second and 5mm/second used? - (ANSWER)for patients that have slow heart rates
During a 5-lead EKG, lead 2 and 3 are not yielding a reading, what limbs should the technician check? -
(ANSWER)left leg
what describes a pulse oximetry of 88% - (ANSWER)hypoxemia
a thin spike before the P wave indicates that a pacemaker has been implanted to pace what? -
(ANSWER)atria
which locations is used for a patient's apical pulse? - (ANSWER)between the fifth and sixth ribs, at the
left midclavicular line
if having trouble visualizing the patients chest movement, what actions should the technician take to
obtain an accurate respiratory rate for the patient? - (ANSWER)place a hand on the middle of the
patients back to count the respirations
what intervals should be used to determine the regularity of ventricular depolarization? - (ANSWER)R-R
wave interval
when placing electrodes on the patients for telemetry, what locations should an EKG technician place
the ground electrode? - (ANSWER)on the right lower leg
what findings should indicate to the technician that the patient is experiencing an adverse reaction? -
(ANSWER)report of tingling sensations in the lower extremities
an EKG technician notices an accelerated idioventricular rhythm on a tracing, what actions should the
technician take next? - (ANSWER)call for help and stay with the patient
, Certified EKG Technician Exam Practice – 150 Questions and Answers on ECG Interpretation, Lead
Placement, Stress Testing | CET Certification NHA | 2025–2026
an EKG technician observes ST segment depression and T wave inversion in multiple leads on a patient's
EKG, what should the technician suspect? - (ANSWER)myocardial ischemia
an EKG technician is working with a patient who has a below-the-knee amputation of the left leg, what
location should the technician place the right leg electrode? - (ANSWER)on the lower right abdomen
an EKG technician is preparing to perform a 12-lead EKG for a patient who has dextrocardia, what
location should the technician place the electrode for lead V1? - (ANSWER)left sternal border, fourth
intercostal space
when evaluating a standard 12-lead EKG tracing, what electrical activity of the septal wall is recorded by
what leads? - (ANSWER)leads V1 and V2
an EKG technician is caring for a patient who is experiencing heart palpitations, what interventions
should the technician expect the provider to prescribe? - (ANSWER)holter monitor
what is the most accurate for an EKG technician to sue when measuring a patient's body temperature? -
(ANSWER)temporal
an EKG technician is performing a posterior 12-lead EKG for patient, what leads should the technician
place along the paraspinous border? - (ANSWER)lead V9
after completing a standard 12-lead EKG on a patient, what action should the technician take next? -
(ANSWER)check that the machine is free from artifacts and then disconnect the patient from the
machine
an EKG technician should recognize that what signs are often present when a patient is experiencing
ventricular tachycardia? - (ANSWER)multiple premature ventricular contractions in a row
when preparing a patient for an exercise test, what leads should the technician place on the right lower
side of the anterior torso? - (ANSWER)lead RL
