Sinus Arrhythmia

Question 1

What are the conditions that can cause sinus arrhythmia?

Answer 1

MI
Advanced age
Use of digoxin or morphine
Increased intracranial pressure

Question 2

What has a irregular rhythm which corresponds to the respiratory cycle, rate within normal limits, all other parameters within normal range?

Answer 2

Sinus arrhythmia

Question 3

What is important to remember about the rate of sinus arrhythmia?

Answer 3

Faster with inspiration, decreases during expiration

Question 4

What is the treatment for sinus arrhythmia?

Answer 4

Unless the pt is symptomatic, don’t treat

Question 5

What is the cause of sinus arrhythmia?

Answer 5

Pacemaker cells of the SA node fire irregularly
Can occur naturally in athletes and children
Isn’t significant and produces no symptoms