Sinus bradycardia ECG interpretation review quiz for nurses!
This EKG quiz will test your knowledge on how to identify sinus bradycardia, causes of this rhythm, nursing interventions for sinus bradycardia, and treatment. As the nurse, it is vital you are able to determine if a patient is experiencing sinus bradycardia and what signs and symptoms require intervention for this rhythm.
Also, here are the sinus bradycardia notes to review before taking the quiz.
Sinus Bradycardia NCLEX ECG/EKG Rhythm Quiz
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Sinus Bradycardia ECG/EKG NCLEX Quiz
1. Sinus bradycardia originates in what part of the electrical conduction system?
A. AV node
B. SA node
C. Bundle Branches
D. Bundle of His
The answer is B: SA node
2. You’re analyzing a patient’s ECG reading. What should be found in the rhythm for it to be considered Sinus Bradycardia (select all that apply):
A. One p wave present in front of every QRS complex
B. Atrial rate 60 and ventricular rate of 60
C. Regular atrial and ventricular rate
D. Atrial rate 40 and ventricular rate of 40
E. Regular atrial rate and irregular ventricular rate
F. PR interval 0.14 seconds
G. PR interval 0.36 seconds
H. QRS interval 0.08 seconds
I. QRS interval 0.16 seconds
The answers are A, C, D, F, and H.
3. You obtain an ECG on a patient and the rhythm is sinus bradycardia with a rate of 52 bpm. Your NEXT nursing action is to?
A. Prepare to administer Atropine IV push
B. Set-up for transcutaneous pacing
C. Assess the patient
D. Call a rapid response
The answer is C: Assess the patient. When discovering sinus bradycardia, the nurse should determine if the patient is having symptoms. Not all cases of this rhythm require medical treatment.
4. Your patient is experiencing extreme fatigue, hypotension, palpations, and shortness of breath. You obtain an ECG and discover a rhythm of sinus bradycardia with a rate of 40 bpm. What finding below could be causing this condition?
A. Potassium level of 3.9 meq/L
B. Lisinopril 10 mg BID PO
C. Blood glucose 84
D. Digoxin 0.125 mg PO daily
The answer is D. Digoxin slows down the heart rate and can lead to bradycardia.
5. Which of the following is NOT a treatment for symptomatic sinus bradycardia?
C. Synchronized cardioversion
D. Transcutaneous pacing
The answer is C: Synchronized cardioversion
6. A patient is experiencing sinus bradycardia with a rate of 34 bpm and blood pressure of 78/42. The patient reports symptoms of chest pain, has cool and clammy skin, dyspnea, and feels like they may faint. The nurse prepares to administer Atropine per a standing physician’s order for the patient’s symptomatic bradycardia. How will the nurse administer this medication?
A. 3 mg IV push every 3-5 minutes, max dose of 5 mg
B. 2 mg IV push every 1-2 minutes, max dose of 3 mg
C. 3-5 mg IV push every 1 minute, max dose 10 mg
D. 1 mg IV push every 3-5 minutes, max dose of 3 mg
The answer is D: Atropine for symptomatic bradycardia should be given as 1 mg IV push every 3-5 minutes, max dose of 3 mg.
7. Referring back to the previous question (6), Atropine was ineffective for treating the bradycardia. The patient is still symptomatic with a rate 35 bpm. What other options could be considered for the patient? Select all that apply:
A. Transcutaneous pacing
B. Amiodarone Infusion
C. Dopamine Infusion
D. Epinephrine Infusion
The answers are A, C, and D.
8. Which medication below should not be used for the treatment of sinus bradycardia in a patient with a transplanted heart?
The answer is B: Atropine
9. Use the figure at the top of the quiz to answer the next few questions: What is the rate of the rhythm above?
A. 60 bpm
B. 30 bpm
C. 50 bpm
D. 40 bpm
The answer is C: 50 bpm
10. What is the PR interval of the rhythm above?
A. 0.04 seconds
B. 0.12 seconds
C. 0.16 seconds
D. 0.20 seconds
The answer is C: 0.16 seconds
11. What is the QRS interval of the rhythm above?
A. 0.12 seconds
B. 0.04 seconds
C. 0.16 seconds
D. 0.20 seconds
The answer is A: 0.12 seconds
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