NHA EKG Exam Questions and
Answers | Latest Version | 2025/2026 |
Correct & Verified
What should be done if a patient is shivering during an EKG?
✔✔Provide a blanket and ensure patient comfort to reduce artifact
Which rhythm has a “rate too slow” but normal P waves and QRS complexes?
✔✔Sinus bradycardia
Which rhythm has a “rate too fast” with normal P waves and QRS complexes?
✔✔Sinus tachycardia
Which rhythm may appear as an absent P wave with narrow QRS and fast rate?
✔✔Supraventricular tachycardia (SVT)
Which electrode placement helps view the septal wall of the heart?
✔✔V1 and V2
1
,Which segment is measured from the end of the QRS to the beginning of the T wave?
✔✔ST segment
Which lead is commonly monitored for detecting inferior wall myocardial infarction?
✔✔Lead II
What is the normal axis of the heart on a standard EKG?
✔✔-30° to +90°
Which action is most important before interpreting an EKG?
✔✔Ensure correct lead placement and patient positioning
What does a prominent U wave suggest?
✔✔Hypokalemia
Which rhythm shows regular P waves but varying PR intervals?
✔✔Second-degree AV block, type I (Wenckebach)
2
,Which rhythm shows dropped QRS complexes with constant PR interval?
✔✔Second-degree AV block, type II
Which rhythm shows complete dissociation between P waves and QRS complexes?
✔✔Third-degree AV block (complete heart block)
Which electrode placement is closest to the right clavicle?
✔✔Right arm
Which lead shows the electrical activity from the right arm to left arm?
✔✔Lead I
Which artifact is caused by patient movement such as talking or coughing?
✔✔Somatic tremor
Which rhythm is considered life-threatening and requires immediate intervention?
✔✔Ventricular fibrillation
3
, Which segment should be analyzed for elevation to detect acute myocardial infarction?
✔✔ST segment
Which is the proper way to prepare skin before applying electrodes?
✔✔Clean with alcohol and allow to dry
Which rhythm has a regular rate, absent P waves, and wide QRS complexes?
✔✔Ventricular escape rhythm
What is the first step before performing an EKG?
✔✔Verify patient identity and explain the procedure
Where should the right arm electrode be placed?
✔✔On the patient’s right wrist or upper arm
Which lead is considered the ground electrode?
✔✔Right leg
4
Answers | Latest Version | 2025/2026 |
Correct & Verified
What should be done if a patient is shivering during an EKG?
✔✔Provide a blanket and ensure patient comfort to reduce artifact
Which rhythm has a “rate too slow” but normal P waves and QRS complexes?
✔✔Sinus bradycardia
Which rhythm has a “rate too fast” with normal P waves and QRS complexes?
✔✔Sinus tachycardia
Which rhythm may appear as an absent P wave with narrow QRS and fast rate?
✔✔Supraventricular tachycardia (SVT)
Which electrode placement helps view the septal wall of the heart?
✔✔V1 and V2
1
,Which segment is measured from the end of the QRS to the beginning of the T wave?
✔✔ST segment
Which lead is commonly monitored for detecting inferior wall myocardial infarction?
✔✔Lead II
What is the normal axis of the heart on a standard EKG?
✔✔-30° to +90°
Which action is most important before interpreting an EKG?
✔✔Ensure correct lead placement and patient positioning
What does a prominent U wave suggest?
✔✔Hypokalemia
Which rhythm shows regular P waves but varying PR intervals?
✔✔Second-degree AV block, type I (Wenckebach)
2
,Which rhythm shows dropped QRS complexes with constant PR interval?
✔✔Second-degree AV block, type II
Which rhythm shows complete dissociation between P waves and QRS complexes?
✔✔Third-degree AV block (complete heart block)
Which electrode placement is closest to the right clavicle?
✔✔Right arm
Which lead shows the electrical activity from the right arm to left arm?
✔✔Lead I
Which artifact is caused by patient movement such as talking or coughing?
✔✔Somatic tremor
Which rhythm is considered life-threatening and requires immediate intervention?
✔✔Ventricular fibrillation
3
, Which segment should be analyzed for elevation to detect acute myocardial infarction?
✔✔ST segment
Which is the proper way to prepare skin before applying electrodes?
✔✔Clean with alcohol and allow to dry
Which rhythm has a regular rate, absent P waves, and wide QRS complexes?
✔✔Ventricular escape rhythm
What is the first step before performing an EKG?
✔✔Verify patient identity and explain the procedure
Where should the right arm electrode be placed?
✔✔On the patient’s right wrist or upper arm
Which lead is considered the ground electrode?
✔✔Right leg
4
