CET CERTIFICATION EXAM REVIEW 2026
PRACTICE QUESTIONS AND CORRECT
ANSWERS A+ STUDY GUIDE
The augmented unipolar lead that produces a negative QRS is - CORRECT
ANSWER-aVR (p and t waves will be negative also)
A QRS that measures less than 3 small boxes is - CORRECT ANSWER-
normal duration
If lead I and AVL are no longer seen you would check the - CORRECT
ANSWER-left arm electrode
A red line on the paper indicates - CORRECT ANSWER-the end of the
paper, prepare to replace it
The location for V6 is - CORRECT ANSWER-5th intercostal space and
midaxillary line
telemetry monitoring usually requires - CORRECT ANSWER-5 electrodes
, what would be the result of applying dried out electrodes - CORRECT
ANSWER-a wandering baseline artifact on the ECG
lead I measures - CORRECT ANSWER-electrical activity from the right
arm to the left arm
300 method for counting rate - CORRECT ANSWER-# of large boxes
divided by 300
posterior placement for V8 - CORRECT ANSWER-left midscapular line
if you need to control and regulate output or height on the ECG tracing -
CORRECT ANSWER-check sensitivity/gain
Patient complains of dizziness during a stress test - CORRECT ANSWER-
stop stress test and notify MD
patients need to document all they do while attached to a 24 hour -
CORRECT ANSWER-holter Monitor- ex running
Precordial lead V4 has a QRS that is both - CORRECT ANSWER-+ Where
would you place electrodes on a patient with a left leg amputation?? -
CORRECT ANSWER-torso, trunk
PRACTICE QUESTIONS AND CORRECT
ANSWERS A+ STUDY GUIDE
The augmented unipolar lead that produces a negative QRS is - CORRECT
ANSWER-aVR (p and t waves will be negative also)
A QRS that measures less than 3 small boxes is - CORRECT ANSWER-
normal duration
If lead I and AVL are no longer seen you would check the - CORRECT
ANSWER-left arm electrode
A red line on the paper indicates - CORRECT ANSWER-the end of the
paper, prepare to replace it
The location for V6 is - CORRECT ANSWER-5th intercostal space and
midaxillary line
telemetry monitoring usually requires - CORRECT ANSWER-5 electrodes
, what would be the result of applying dried out electrodes - CORRECT
ANSWER-a wandering baseline artifact on the ECG
lead I measures - CORRECT ANSWER-electrical activity from the right
arm to the left arm
300 method for counting rate - CORRECT ANSWER-# of large boxes
divided by 300
posterior placement for V8 - CORRECT ANSWER-left midscapular line
if you need to control and regulate output or height on the ECG tracing -
CORRECT ANSWER-check sensitivity/gain
Patient complains of dizziness during a stress test - CORRECT ANSWER-
stop stress test and notify MD
patients need to document all they do while attached to a 24 hour -
CORRECT ANSWER-holter Monitor- ex running
Precordial lead V4 has a QRS that is both - CORRECT ANSWER-+ Where
would you place electrodes on a patient with a left leg amputation?? -
CORRECT ANSWER-torso, trunk
