NUR 430: Exam 1 Questions with Detailed
Verified Answers
Normal PR Interval Ans: 0.12-0.20 seconds
Normal QRS Duration Ans: 0.06 to 0.10 seconds
Sinus bradycardia originates in what part of the electrical conduction system?
a. AV node
b. SA node
c. Bundle Branches
d. Bundle of His Ans: b. SA node
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 Ans: a. One p wave present in front of every QRS
complex
c. Regular atrial and ventricular rate
d. Atrial rate 40 and ventricular rate of 40
f. PR interval 0.14 seconds
h. QRS interval 0.08 seconds
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 Ans: c. Assess the patient
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.
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?
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,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 Ans: d. Digoxin 0.125 mg PO daily
Digoxin slows down the heart rate and can lead to bradycardia.
Which of the following is NOT a treatment for symptomatic sinus bradycardia?
a. Dopamine
b. Atropine
c. Synchronized cardioversion
d. Transcutaneous pacing Ans: c. Synchronized cardioversion
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
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, 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 Ans: d. 1 mg IV push every 3-5
minutes, max dose of 3 mg
Atropine for symptomatic bradycardia should be given as 0.5-1 mg IV push every 3-5
minutes, max dose of 3 mg.
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 Ans: a. Transcutaneous pacing
c. Dopamine Infusion
d. Epinephrine Infusion
Which medication below should not be used for the treatment of sinus bradycardia in
a patient with a transplanted heart?
a. Isoproterenol
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Verified Answers
Normal PR Interval Ans: 0.12-0.20 seconds
Normal QRS Duration Ans: 0.06 to 0.10 seconds
Sinus bradycardia originates in what part of the electrical conduction system?
a. AV node
b. SA node
c. Bundle Branches
d. Bundle of His Ans: b. SA node
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 Ans: a. One p wave present in front of every QRS
complex
c. Regular atrial and ventricular rate
d. Atrial rate 40 and ventricular rate of 40
f. PR interval 0.14 seconds
h. QRS interval 0.08 seconds
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 Ans: c. Assess the patient
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.
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?
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,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 Ans: d. Digoxin 0.125 mg PO daily
Digoxin slows down the heart rate and can lead to bradycardia.
Which of the following is NOT a treatment for symptomatic sinus bradycardia?
a. Dopamine
b. Atropine
c. Synchronized cardioversion
d. Transcutaneous pacing Ans: c. Synchronized cardioversion
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
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, 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 Ans: d. 1 mg IV push every 3-5
minutes, max dose of 3 mg
Atropine for symptomatic bradycardia should be given as 0.5-1 mg IV push every 3-5
minutes, max dose of 3 mg.
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 Ans: a. Transcutaneous pacing
c. Dopamine Infusion
d. Epinephrine Infusion
Which medication below should not be used for the treatment of sinus bradycardia in
a patient with a transplanted heart?
a. Isoproterenol
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