What is a common symptom of atrial fibrillation?

Atrial fibrillation (AF) is characterized by an irregular and often rapid heart rhythm that can lead to various symptoms. The correct choice, which mentions palpitations and dizziness, captures two of the most common experiences reported by patients with AF.

Palpitations refer to the sensation of a racing, fluttering, or pounding heart, which occurs due to the chaotic electrical signals in the atria. Patients may become aware of their heart beating irregularly or faster than normal. Dizziness can stem from inadequate blood flow to the brain resulting from the ineffective pumping action of the heart during AF, especially if the heart rate is significantly elevated or if the individual has underlying issues like heart failure.

Other choices are limited in their relevance. For example, chest pain, paleness, and shortness of breath may occur during atrial fibrillation but are not as definitive or widespread as palpitations and dizziness in the patient population. Shortness of breath, while a potential symptom, does not encompass the full range of experiences and may indicate other underlying issues, making it less accurate as a singular symptom of AF.