Premature Atrial Contractions (PACs) Quiz

What is the primary difference between conducted and non-conducted PACs?

• Conducted PACs originate from the ventricles, while non-conducted PACs originate from the atria.

• Conducted PACs are followed by a QRS complex, while non-conducted PACs are not.

• Conducted PACs are always symptomatic, while non-conducted PACs are asymptomatic.

• Conducted PACs occur later in the cardiac cycle, while non-conducted PACs occur earlier.

Which of the following is NOT a characteristic of PACs?

• Normal QRS complex

• Variable PR interval

• Early P waves with different shapes

• Regular rhythm

What is a common cause of premature atrial contractions?

• Atrial enlargement

• High potassium levels

• Low sodium levels

• Excessive sleep

Which medication is commonly used to manage frequent PACs?

• Beta blockers

• Antibiotics

• Antihistamines

• Diuretics

What lifestyle change can help prevent PACs?

• Sleeping less

• Skipping meals

• Increasing caffeine intake

• Reducing stress