Sinus Rhythms - Sinus Bradycardia

Description

• Rhythms are often named according to the origin of the electrical activity in the heart or the structure where the problem is occurring.
• Sinus Rhythms are aptly named due to the locus of stimulation being the SA (sinoatrial) node.
• With Sinus Bradycardia the locus of stimulation is the same as normal sinus rhythm, just now the rate will be less than 60 bpm. Recall that “brady” means slow.
• The only difference between sinus bradycardia and normal sinus rhythm is the rate. All other steps in the rhythm analysis are “normal”.

Practice Strip

Sinus Bradycardia - Practice Strip

• Analyze this tracing using the five steps of rhythm analysis.
• Compare your answers with the answers on the next slide.

Answers

Practice Strip - Answers

• Rhythm: Regular
• Rate: 56 (27 small boxes)
• P wave: Upright and Uniform
• PR interval: 0.18 sec
• QRS: 0.10 sec
• Interpretation: Sinus Bradycardia