NHA CET STUDY GUIDE QUESTIONS
COMPLETE WITH CORRECT
ANSWERS
\.The presence of which of the following on an EKG tracing can indicate a previous
myocardial infarction (MI)? - ANSWERS✔-Pathologic Q waves
\.An EKG technician is reviewing EKG tracings of a patient who has ventricular
hypertrophy (enlarged ventricle). Which of the following findings should the
technician expect? - ANSWERS✔-Irregularity of P-P interval
\.An EKG technician is measuring the intervals on an EKG tracing. Which of the
following is an expected finding of impaired conduction through the AV node? -
ANSWERS✔-Prolonged PR interval
\.Which of the following waves should an EKG tech use to determine the regularity
of the ventricular rate? - ANSWERS✔-R wave
\.Which of the following describes a complete cardiac cycle in a healthy heart? -
ANSWERS✔-P wave, QRS complex, T wave
\.Which of the following is the result of atrial depolarization? - ANSWERS✔-P wave
, \.Which of the following waves should an EKG technician measure to evaluate for
atrial depolarization? - ANSWERS✔-P wave
\.From the tracing shown, which of the following waves is absent?
(Illustration shows a QRS complex and T wave but no P wave) - ANSWERS✔-
\.Which of the following intervals should be used to determine the regularity of
ventricular depolarization? - ANSWERS✔-R-R interval
\.Using the tracing below, measure the PR interval in seconds.
(You would count the number of small boxes from the beginning of the P wave to
the end of the PR segment and multiply that number by .04 to give you an answer
in seconds. For milliseconds, take the answer in seconds and move the decimal 3
spaces to the right. There were 7 small boxes in this example, so 7 X .04=.28
seconds) - ANSWERS✔-.28 seconds
\.An EKG technician should recognize that the smallest box on the EKG graph
paper represents which of the following lengths of time? - ANSWERS✔-0.04
seconds
\.An EKG technician is measuring the intervals on an EKG tracing. Which of the
following is an expected finding of impaired conduction through the AV node? -
ANSWERS✔-Prolonged PR interval
\.In the tracing shown, which of the following is the duration of the QT interval in
seconds?
COMPLETE WITH CORRECT
ANSWERS
\.The presence of which of the following on an EKG tracing can indicate a previous
myocardial infarction (MI)? - ANSWERS✔-Pathologic Q waves
\.An EKG technician is reviewing EKG tracings of a patient who has ventricular
hypertrophy (enlarged ventricle). Which of the following findings should the
technician expect? - ANSWERS✔-Irregularity of P-P interval
\.An EKG technician is measuring the intervals on an EKG tracing. Which of the
following is an expected finding of impaired conduction through the AV node? -
ANSWERS✔-Prolonged PR interval
\.Which of the following waves should an EKG tech use to determine the regularity
of the ventricular rate? - ANSWERS✔-R wave
\.Which of the following describes a complete cardiac cycle in a healthy heart? -
ANSWERS✔-P wave, QRS complex, T wave
\.Which of the following is the result of atrial depolarization? - ANSWERS✔-P wave
, \.Which of the following waves should an EKG technician measure to evaluate for
atrial depolarization? - ANSWERS✔-P wave
\.From the tracing shown, which of the following waves is absent?
(Illustration shows a QRS complex and T wave but no P wave) - ANSWERS✔-
\.Which of the following intervals should be used to determine the regularity of
ventricular depolarization? - ANSWERS✔-R-R interval
\.Using the tracing below, measure the PR interval in seconds.
(You would count the number of small boxes from the beginning of the P wave to
the end of the PR segment and multiply that number by .04 to give you an answer
in seconds. For milliseconds, take the answer in seconds and move the decimal 3
spaces to the right. There were 7 small boxes in this example, so 7 X .04=.28
seconds) - ANSWERS✔-.28 seconds
\.An EKG technician should recognize that the smallest box on the EKG graph
paper represents which of the following lengths of time? - ANSWERS✔-0.04
seconds
\.An EKG technician is measuring the intervals on an EKG tracing. Which of the
following is an expected finding of impaired conduction through the AV node? -
ANSWERS✔-Prolonged PR interval
\.In the tracing shown, which of the following is the duration of the QT interval in
seconds?
