Improper beating of the heart, whether irregular, too fast, or too slow.
Very common
More than 3 million US cases per year
Requires a medical diagnosis
Lab tests or imaging often required
Treatable by a medical professional
Critical: needs emergency care
Cardiac arrhythmia occurs when electrical impulses in the heart don't work properly.
There may be no symptoms. Or, symptoms may include a fluttering in the chest, chest pain, fainting, or dizziness.
If needed, treatment includes anti-arrhythmic drugs, medical procedures, implantable devices, and surgery.
Consult a doctor for medical advice
Sources: Mayo Clinic and others. Learn more