Arrhythmias

Definition

Arrhythmias are abnormal heart rhythms resulting from issues in the electrical impulses that coordinate heartbeats. They can range from harmless to life-threatening conditions.

5 Must Know Facts For Your Next Test

1. Arrhythmias can be classified into tachycardia (fast heart rate) and bradycardia (slow heart rate).
2. Common causes include electrolyte imbalances, myocardial infarction, and congenital heart defects.
3. Symptoms may include palpitations, dizziness, shortness of breath, and chest pain.
4. Electrocardiograms (ECGs) are essential diagnostic tools for identifying arrhythmias.
5. Treatment options vary from lifestyle changes and medications to surgical procedures like pacemaker implantation.

Review Questions

• What are the two primary types of arrhythmias based on heart rate?
• List three common causes of arrhythmias.
• What is the primary diagnostic tool used to identify arrhythmias?

Related terms

Tachycardia: A condition where the heartbeat is abnormally fast.

Bradycardia: A condition where the heartbeat is abnormally slow.

Electrocardiogram (ECG): A test that records the electrical activity of the heart to detect abnormalities.