StaRN EKG Test for HCA VERIFIED
QUESTIONS AND ANSWERS 2024/2025
Course
Ekg
1. What is the normal PR interval duration on an EKG?
A) 0.08 - 0.12 seconds
B) 0.12 - 0.20 seconds
C) 0.20 - 0.30 seconds
D) >0.30 seconds
✅ Answer: B) 0.12 - 0.20 seconds
2. What does ST-segment elevation most commonly indicate?
A) Hypokalemia
B) Myocardial infarction
C) Sinus tachycardia
D) First-degree AV block
✅ Answer: B) Myocardial infarction
3. Which lead is best for detecting P waves?
A) Lead I
B) Lead II
C) aVR
D) V1
✅ Answer: B) Lead II
4. What arrhythmia is characterized by a "sawtooth" pattern of atrial activity?
A) Atrial fibrillation
B) Atrial flutter
C) Ventricular tachycardia
D) Junctional rhythm
,✅ Answer: B) Atrial flutter
5. What is the first-line treatment for stable supraventricular tachycardia
(SVT)?
A) Amiodarone
B) Adenosine
C) Atropine
D) Defibrillation
✅ Answer: B) Adenosine
6. What does a prolonged QT interval increase the risk of?
A) Atrial fibrillation
B) Ventricular fibrillation
C) Torsades de Pointes
D) Sinus arrest
✅ Answer: C) Torsades de Pointes
7. Which electrolyte imbalance is associated with peaked T waves?
A) Hypokalemia
B) Hyperkalemia
C) Hypercalcemia
D) Hyponatremia
✅ Answer: B) Hyperkalemia
8. What is the most appropriate treatment for ventricular fibrillation?
A) Synchronized cardioversion
B) Atropine
C) Defibrillation
D) Adenosine
,✅ Answer: C) Defibrillation
9. What is the defining characteristic of third-degree AV block?
A) Prolonged PR interval with every QRS complex
B) No relationship between P waves and QRS complexes
C) Irregularly irregular QRS complexes
D) Narrow QRS with a rapid rate
✅ Answer: B) No relationship between P waves and QRS complexes
10. Which rhythm requires immediate transcutaneous pacing?
A) Atrial fibrillation
B) Sinus tachycardia
C) Symptomatic bradycardia with heart block
D) Atrial flutter
✅ Answer: C) Symptomatic bradycardia with heart block
11. What is the normal QRS duration on an EKG?
A) 0.06 - 0.10 seconds
B) 0.12 - 0.20 seconds
C) 0.20 - 0.30 seconds
D) >0.30 seconds
✅ Answer: A) 0.06 - 0.10 seconds
12. What is the most common cause of sinus tachycardia?
A) Myocardial infarction
B) Hypovolemia
C) Hyperkalemia
D) Atrial fibrillation
✅ Answer: B) Hypovolemia
, 13. Which rhythm is characterized by a chaotic, irregular pattern with no identifiable P waves?
A) Atrial flutter
B) Atrial fibrillation
C) Ventricular tachycardia
D) Junctional rhythm
✅ Answer: B) Atrial fibrillation
14. Which medication is most commonly used to treat symptomatic bradycardia?
A) Adenosine
B) Amiodarone
C) Atropine
D) Digoxin
✅ Answer: C) Atropine
15. What is the primary feature of a first-degree AV block?
A) Progressive lengthening of the PR interval until a QRS is dropped
B) PR interval greater than 0.20 seconds with every QRS
C) No relationship between P waves and QRS complexes
D) Wide QRS complexes with irregular intervals
✅ Answer: B) PR interval greater than 0.20 seconds with every QRS
16. What is the hallmark sign of Torsades de Pointes?
A) Sawtooth P waves
B) Wide QRS complexes with a twisting pattern
C) Regular P waves without QRS complexes
D) Prolonged PR intervals
✅ Answer: B) Wide QRS complexes with a twisting pattern
17. Which condition is most commonly associated with ST-segment depression?
QUESTIONS AND ANSWERS 2024/2025
Course
Ekg
1. What is the normal PR interval duration on an EKG?
A) 0.08 - 0.12 seconds
B) 0.12 - 0.20 seconds
C) 0.20 - 0.30 seconds
D) >0.30 seconds
✅ Answer: B) 0.12 - 0.20 seconds
2. What does ST-segment elevation most commonly indicate?
A) Hypokalemia
B) Myocardial infarction
C) Sinus tachycardia
D) First-degree AV block
✅ Answer: B) Myocardial infarction
3. Which lead is best for detecting P waves?
A) Lead I
B) Lead II
C) aVR
D) V1
✅ Answer: B) Lead II
4. What arrhythmia is characterized by a "sawtooth" pattern of atrial activity?
A) Atrial fibrillation
B) Atrial flutter
C) Ventricular tachycardia
D) Junctional rhythm
,✅ Answer: B) Atrial flutter
5. What is the first-line treatment for stable supraventricular tachycardia
(SVT)?
A) Amiodarone
B) Adenosine
C) Atropine
D) Defibrillation
✅ Answer: B) Adenosine
6. What does a prolonged QT interval increase the risk of?
A) Atrial fibrillation
B) Ventricular fibrillation
C) Torsades de Pointes
D) Sinus arrest
✅ Answer: C) Torsades de Pointes
7. Which electrolyte imbalance is associated with peaked T waves?
A) Hypokalemia
B) Hyperkalemia
C) Hypercalcemia
D) Hyponatremia
✅ Answer: B) Hyperkalemia
8. What is the most appropriate treatment for ventricular fibrillation?
A) Synchronized cardioversion
B) Atropine
C) Defibrillation
D) Adenosine
,✅ Answer: C) Defibrillation
9. What is the defining characteristic of third-degree AV block?
A) Prolonged PR interval with every QRS complex
B) No relationship between P waves and QRS complexes
C) Irregularly irregular QRS complexes
D) Narrow QRS with a rapid rate
✅ Answer: B) No relationship between P waves and QRS complexes
10. Which rhythm requires immediate transcutaneous pacing?
A) Atrial fibrillation
B) Sinus tachycardia
C) Symptomatic bradycardia with heart block
D) Atrial flutter
✅ Answer: C) Symptomatic bradycardia with heart block
11. What is the normal QRS duration on an EKG?
A) 0.06 - 0.10 seconds
B) 0.12 - 0.20 seconds
C) 0.20 - 0.30 seconds
D) >0.30 seconds
✅ Answer: A) 0.06 - 0.10 seconds
12. What is the most common cause of sinus tachycardia?
A) Myocardial infarction
B) Hypovolemia
C) Hyperkalemia
D) Atrial fibrillation
✅ Answer: B) Hypovolemia
, 13. Which rhythm is characterized by a chaotic, irregular pattern with no identifiable P waves?
A) Atrial flutter
B) Atrial fibrillation
C) Ventricular tachycardia
D) Junctional rhythm
✅ Answer: B) Atrial fibrillation
14. Which medication is most commonly used to treat symptomatic bradycardia?
A) Adenosine
B) Amiodarone
C) Atropine
D) Digoxin
✅ Answer: C) Atropine
15. What is the primary feature of a first-degree AV block?
A) Progressive lengthening of the PR interval until a QRS is dropped
B) PR interval greater than 0.20 seconds with every QRS
C) No relationship between P waves and QRS complexes
D) Wide QRS complexes with irregular intervals
✅ Answer: B) PR interval greater than 0.20 seconds with every QRS
16. What is the hallmark sign of Torsades de Pointes?
A) Sawtooth P waves
B) Wide QRS complexes with a twisting pattern
C) Regular P waves without QRS complexes
D) Prolonged PR intervals
✅ Answer: B) Wide QRS complexes with a twisting pattern
17. Which condition is most commonly associated with ST-segment depression?
