NHA CET Exam Prep Questions and
Answers | Latest Version | 2025/2026 |
Correct & Verified
What is the primary role of an EKG technician?
✔✔To perform electrocardiograms and assist with cardiac monitoring
What is the proper patient position for a resting EKG?
✔✔Supine with arms at sides
What does the P wave indicate on an EKG tracing?
✔✔Atrial depolarization
What does the QRS complex indicate on an EKG?
✔✔Ventricular depolarization
What does the T wave indicate on an EKG?
✔✔Ventricular repolarization
1
,What is the term for a flat line on the EKG between waves?
✔✔Isoelectric line
Which lead placement is used for V1?
✔✔Fourth intercostal space at the right sternal border
Which lead placement is used for V6?
✔✔Fifth intercostal space at the midaxillary line
What is the first step before performing an EKG on a patient?
✔✔Verify patient identity and explain the procedure
What should a medical assistant do if a patient has a pacemaker before an EKG?
✔✔Document the presence of the pacemaker
What artifact is caused by patient movement or tremors?
✔✔Somatic tremor
2
,What artifact is caused by poor electrode contact?
✔✔Wandering baseline
Which rhythm has no discernible P waves and an irregularly irregular ventricular response?
✔✔Atrial fibrillation
Which rhythm shows a sawtooth pattern of P waves?
✔✔Atrial flutter
Which rhythm has wide, bizarre QRS complexes and no preceding P waves?
✔✔Ventricular tachycardia
What is the normal heart rate range for a healthy adult at rest?
✔✔60–100 beats per minute
How long should each small square represent on standard EKG paper?
✔✔0.04 seconds
3
, How many small squares represent 1 second on EKG paper at standard speed?
✔✔25 small squares
What is the purpose of the PR interval on an EKG?
✔✔To measure the time it takes for the electrical impulse to travel from the atria to the ventricles
What is considered a normal duration for the PR interval?
✔✔0.12–0.20 seconds
What is considered a normal duration for the QRS complex?
✔✔0.06–0.10 seconds
Which rhythm is rapid, chaotic ventricular activity with no effective cardiac output?
✔✔Ventricular fibrillation
Which rhythm is too slow, under 60 beats per minute?
✔✔Bradycardia
4
Answers | Latest Version | 2025/2026 |
Correct & Verified
What is the primary role of an EKG technician?
✔✔To perform electrocardiograms and assist with cardiac monitoring
What is the proper patient position for a resting EKG?
✔✔Supine with arms at sides
What does the P wave indicate on an EKG tracing?
✔✔Atrial depolarization
What does the QRS complex indicate on an EKG?
✔✔Ventricular depolarization
What does the T wave indicate on an EKG?
✔✔Ventricular repolarization
1
,What is the term for a flat line on the EKG between waves?
✔✔Isoelectric line
Which lead placement is used for V1?
✔✔Fourth intercostal space at the right sternal border
Which lead placement is used for V6?
✔✔Fifth intercostal space at the midaxillary line
What is the first step before performing an EKG on a patient?
✔✔Verify patient identity and explain the procedure
What should a medical assistant do if a patient has a pacemaker before an EKG?
✔✔Document the presence of the pacemaker
What artifact is caused by patient movement or tremors?
✔✔Somatic tremor
2
,What artifact is caused by poor electrode contact?
✔✔Wandering baseline
Which rhythm has no discernible P waves and an irregularly irregular ventricular response?
✔✔Atrial fibrillation
Which rhythm shows a sawtooth pattern of P waves?
✔✔Atrial flutter
Which rhythm has wide, bizarre QRS complexes and no preceding P waves?
✔✔Ventricular tachycardia
What is the normal heart rate range for a healthy adult at rest?
✔✔60–100 beats per minute
How long should each small square represent on standard EKG paper?
✔✔0.04 seconds
3
, How many small squares represent 1 second on EKG paper at standard speed?
✔✔25 small squares
What is the purpose of the PR interval on an EKG?
✔✔To measure the time it takes for the electrical impulse to travel from the atria to the ventricles
What is considered a normal duration for the PR interval?
✔✔0.12–0.20 seconds
What is considered a normal duration for the QRS complex?
✔✔0.06–0.10 seconds
Which rhythm is rapid, chaotic ventricular activity with no effective cardiac output?
✔✔Ventricular fibrillation
Which rhythm is too slow, under 60 beats per minute?
✔✔Bradycardia
4
