Sinus Bradycardia

Question 0

Is there a QRS?

Answer 0

Yes; <.12

Question 1

Is there a P wave?

Answer 1

Yes

Question 2

PR interval

Answer 2

Between .12 to .20 = Normal

Question 3

What is the rate and rhythm of Sinus Bradycardia?

Answer 3

Regular rhythm but rate is less than 60 bpm.

Question 4

What are some common causes of sinus bradycardia?

Answer 4

1. PNS stimulation
2. Coughing
3. Sleeping
4. Athlete
5. Vomiting
6. Hypothermia
7. Hypothyroidism
8. Vagal Stimulation/having a BM

Question 5

What are other sinus bradycardia treatments?

Answer 5

1. Atropine (1st line Drug)
2. SNS stimulants
   A. Dopamine
   B. Epinephrine
3. Temporary pacemaker
4. Permanent pacemaker

Question 6

What are some S/S of sinus bradycardia?

Answer 6

1. Decreased perfusion 
   A. Angina
   B. Decreased LOC
   C. Hypotension
   D. SOB

Question 7

Why is sinus bradycardia normal in an athlete?

Answer 7

The heart chambers increase their capacity as the heart wall thickens to maintain adequate cardiac output despite a lower HR

Question 8

NCLEX Interventions for Sinus Bradycardia

Answer 8

1. If prescription med responsible for Brady; withhold med and notify HCP
2. Administer oxygen as prescribed
3. Avoid additional doses of atropine as tachycardia may result.

Question 9

What medications can cause Bradycardia?

Answer 9

Beta blockers
Digoxin and
Narcotics