CERTIFIED EKG TECHNICIAN (CET)
PRACTICE TEST 2.0 A EXAM
QUESTIONS AND ANSWERS GRADED A+
2026
When should the assistant reduce the speed to 50mm/ second? - ANS when a patient has a
fast heart rate
when are 10mm/ second and 5mm/second used? - ANS 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? - ANS left leg
what describes a pulse oximetry of 88% - ANS hypoxemia
a thin spike before the P wave indicates that a pacemaker has been implanted to pace what? -
ANS atria
which locations is used for a patient's apical pulse? - ANS between the fifth and sixth ribs, at
the left midclavicular line
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 1
, if having trouble visualizing the patients chest movement, what actions should the technician
take to obtain an accurate respiratory rate for the patient? - ANS 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? -
ANS R-R wave interval
when placing electrodes on the patients for telemetry, what locations should an EKG technician
place the ground electrode? - ANS on the right lower leg
what findings should indicate to the technician that the patient is experiencing an adverse
reaction? - ANS 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? - ANS call for help and stay with the patient
an EKG technician observes ST segment depression and T wave inversion in multiple leads on a
patient's EKG, what should the technician suspect? - ANS 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? - ANS 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? - ANS left sternal border,
fourth intercostal space
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 2
PRACTICE TEST 2.0 A EXAM
QUESTIONS AND ANSWERS GRADED A+
2026
When should the assistant reduce the speed to 50mm/ second? - ANS when a patient has a
fast heart rate
when are 10mm/ second and 5mm/second used? - ANS 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? - ANS left leg
what describes a pulse oximetry of 88% - ANS hypoxemia
a thin spike before the P wave indicates that a pacemaker has been implanted to pace what? -
ANS atria
which locations is used for a patient's apical pulse? - ANS between the fifth and sixth ribs, at
the left midclavicular line
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 1
, if having trouble visualizing the patients chest movement, what actions should the technician
take to obtain an accurate respiratory rate for the patient? - ANS 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? -
ANS R-R wave interval
when placing electrodes on the patients for telemetry, what locations should an EKG technician
place the ground electrode? - ANS on the right lower leg
what findings should indicate to the technician that the patient is experiencing an adverse
reaction? - ANS 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? - ANS call for help and stay with the patient
an EKG technician observes ST segment depression and T wave inversion in multiple leads on a
patient's EKG, what should the technician suspect? - ANS 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? - ANS 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? - ANS left sternal border,
fourth intercostal space
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 2
