CET Practice Test – Study Guide and Practice Questions for Certified Electronics
Technician Exam Preparation
Which of the following is the only calculating method available for both regular and irregular
rhythms? - ANS ✔✔The 6- Second method
During a stress test, an EKG tech notices the patient appears to be hyperventilating. Which of
the following is an appropriate course of action for the tech? - ANS ✔✔Check the patient's
respiratory rate. Checking the rate will allow the CET to confirm hyperventilation.
Which of the following sensitivity settings would produce a calibration box that measures 10mm
tall? - ANS ✔✔A sensitivity setting of 1
Which of the following methods for calculating a patient's heart rate from the EKG is correct? -
ANS ✔✔Divide 1,500 by the number of small boxes between two R waves to calculate a full
cardiac cycle.
What is the correct order of a complete cardiac cycle in the normal heart? - ANS ✔✔P wave,
QRS complex, and T wave
While performing a stress test, the patient complains of dizziness. After stopping the test, which
of the following actions should the CET take first:? - ANS ✔✔The CET should notify the physician
immediately after stopping the test.
Which of the following describes the correct electrode placement for lead V5? - ANS
✔✔Anterior axillary line, 5th intercostal space.
Calculate the heart rate in the tracing below using the 1500 method.
- ANS ✔✔68/min
, The R-R interval on a patient's tracing had five large boxes. Which of the following is the
patient's heart rate? - ANS ✔✔The rate is calculated using the 300 method.
330/5 = 60
Where the EKG tech place the electrode for lead V5? - ANS ✔✔On the left anterior axillary line,
horizontal to V4
Which of the following waves would an EKG tech measure to evaluate for atrial enlargement? -
ANS ✔✔The P wave is the only wave that is measure outside of an interval or a complex.
What is the name of the arrhythmia in the EKG tracing below? - ANS ✔✔Atrial flutter
Characterized by flutter waves between QRS complexes. The most common flutter to ventricular
response ration is 2:1
Which of the following lead groups are bipolar leads? - ANS ✔✔I,II, and III
Which of the following artifacts is shown in the tracing below? - ANS ✔✔Wandering Baseline
Because the tracing moves up and down.
An EKG tech is working with a patient who has a below the knee amputation of the left leg.
WHere should the tech place the right- leg electrode? - ANS ✔✔On the lower right thigh.
The electrodes need to remain equidistant from one another, so moving the left leg electrode to
the thigh requires moving the right leg electrode to the thigh.
When performing a posterior EKG, which of the following is the correct location for a placement
of lead V8? - ANS ✔✔Left midscapular line.
Technician Exam Preparation
Which of the following is the only calculating method available for both regular and irregular
rhythms? - ANS ✔✔The 6- Second method
During a stress test, an EKG tech notices the patient appears to be hyperventilating. Which of
the following is an appropriate course of action for the tech? - ANS ✔✔Check the patient's
respiratory rate. Checking the rate will allow the CET to confirm hyperventilation.
Which of the following sensitivity settings would produce a calibration box that measures 10mm
tall? - ANS ✔✔A sensitivity setting of 1
Which of the following methods for calculating a patient's heart rate from the EKG is correct? -
ANS ✔✔Divide 1,500 by the number of small boxes between two R waves to calculate a full
cardiac cycle.
What is the correct order of a complete cardiac cycle in the normal heart? - ANS ✔✔P wave,
QRS complex, and T wave
While performing a stress test, the patient complains of dizziness. After stopping the test, which
of the following actions should the CET take first:? - ANS ✔✔The CET should notify the physician
immediately after stopping the test.
Which of the following describes the correct electrode placement for lead V5? - ANS
✔✔Anterior axillary line, 5th intercostal space.
Calculate the heart rate in the tracing below using the 1500 method.
- ANS ✔✔68/min
, The R-R interval on a patient's tracing had five large boxes. Which of the following is the
patient's heart rate? - ANS ✔✔The rate is calculated using the 300 method.
330/5 = 60
Where the EKG tech place the electrode for lead V5? - ANS ✔✔On the left anterior axillary line,
horizontal to V4
Which of the following waves would an EKG tech measure to evaluate for atrial enlargement? -
ANS ✔✔The P wave is the only wave that is measure outside of an interval or a complex.
What is the name of the arrhythmia in the EKG tracing below? - ANS ✔✔Atrial flutter
Characterized by flutter waves between QRS complexes. The most common flutter to ventricular
response ration is 2:1
Which of the following lead groups are bipolar leads? - ANS ✔✔I,II, and III
Which of the following artifacts is shown in the tracing below? - ANS ✔✔Wandering Baseline
Because the tracing moves up and down.
An EKG tech is working with a patient who has a below the knee amputation of the left leg.
WHere should the tech place the right- leg electrode? - ANS ✔✔On the lower right thigh.
The electrodes need to remain equidistant from one another, so moving the left leg electrode to
the thigh requires moving the right leg electrode to the thigh.
When performing a posterior EKG, which of the following is the correct location for a placement
of lead V8? - ANS ✔✔Left midscapular line.
