EKG NHA Practice Test 1 Questions
and Answers | Latest Version |
2025/2026 | Correct & Verified
Which lead provides a view of the lateral wall of the heart?
A. Lead II
B. Lead III
✔✔C. Lead I
D. Lead aVR
What is the normal range for an adult resting heart rate?
A. 40–60 bpm
✔✔B. 60–100 bpm
C. 100–120 bpm
D. 120–140 bpm
Which electrode placement is correct for V1?
A. Left midclavicular, 5th intercostal
✔✔B. Fourth intercostal space, right sternal border
1
,C. Fourth intercostal space, left sternal border
D. Fifth intercostal space, midaxillary
What does the P wave represent on an EKG?
A. Ventricular depolarization
✔✔B. Atrial depolarization
C. Ventricular repolarization
D. AV node delay
Which part of the EKG indicates ventricular repolarization?
A. P wave
B. PR interval
✔✔C. T wave
D. QRS complex
What is the standard paper speed for an EKG?
A. 10 mm/sec
✔✔B. 25 mm/sec
2
,C. 50 mm/sec
D. 100 mm/sec
Which lead is considered the “rhythm strip” in a 12-lead EKG?
A. Lead I
✔✔B. Lead II
C. Lead III
D. aVR
What does the QRS complex represent?
A. Atrial depolarization
B. Atrial repolarization
✔✔C. Ventricular depolarization
D. AV node delay
A patient’s EKG shows a prolonged PR interval. What is this called?
A. Ventricular tachycardia
B. Atrial fibrillation
3
, ✔✔C. First-degree AV block
D. Junctional rhythm
Which action should the MA take if the patient has a tremor during an EKG?
A. Ignore it
B. Ask the patient to move arms
✔✔C. Instruct patient to relax and remain still
D. Reapply all electrodes
What is the correct electrode placement for V6?
A. Fourth intercostal space, left sternal border
B. Fifth intercostal space, midclavicular
C. Fourth intercostal space, right sternal border
✔✔D. Fifth intercostal space, midaxillary line
Which EKG artifact is caused by loose electrodes?
A. AC interference
✔✔B. Wandering baseline
4
and Answers | Latest Version |
2025/2026 | Correct & Verified
Which lead provides a view of the lateral wall of the heart?
A. Lead II
B. Lead III
✔✔C. Lead I
D. Lead aVR
What is the normal range for an adult resting heart rate?
A. 40–60 bpm
✔✔B. 60–100 bpm
C. 100–120 bpm
D. 120–140 bpm
Which electrode placement is correct for V1?
A. Left midclavicular, 5th intercostal
✔✔B. Fourth intercostal space, right sternal border
1
,C. Fourth intercostal space, left sternal border
D. Fifth intercostal space, midaxillary
What does the P wave represent on an EKG?
A. Ventricular depolarization
✔✔B. Atrial depolarization
C. Ventricular repolarization
D. AV node delay
Which part of the EKG indicates ventricular repolarization?
A. P wave
B. PR interval
✔✔C. T wave
D. QRS complex
What is the standard paper speed for an EKG?
A. 10 mm/sec
✔✔B. 25 mm/sec
2
,C. 50 mm/sec
D. 100 mm/sec
Which lead is considered the “rhythm strip” in a 12-lead EKG?
A. Lead I
✔✔B. Lead II
C. Lead III
D. aVR
What does the QRS complex represent?
A. Atrial depolarization
B. Atrial repolarization
✔✔C. Ventricular depolarization
D. AV node delay
A patient’s EKG shows a prolonged PR interval. What is this called?
A. Ventricular tachycardia
B. Atrial fibrillation
3
, ✔✔C. First-degree AV block
D. Junctional rhythm
Which action should the MA take if the patient has a tremor during an EKG?
A. Ignore it
B. Ask the patient to move arms
✔✔C. Instruct patient to relax and remain still
D. Reapply all electrodes
What is the correct electrode placement for V6?
A. Fourth intercostal space, left sternal border
B. Fifth intercostal space, midclavicular
C. Fourth intercostal space, right sternal border
✔✔D. Fifth intercostal space, midaxillary line
Which EKG artifact is caused by loose electrodes?
A. AC interference
✔✔B. Wandering baseline
4
