what is a dangerous heart rate with afib

In atrial fibrillation (AFib), the heart rate may be over 140 beats per minute, which is much higher than the normal resting heart rate of 60 to 100 beats per minute. However, what is considered a dangerous heart rate in AFib depends on several factors, including overall health, age, and whether symptoms are present. Resting heart rates exceeding 100-120 beats per minute are often considered concerning and may warrant medical attention, especially if symptoms are present. Symptoms of a dangerous heart rate in AFib may include chest pain, shortness of breath, dizziness, and fainting. Immediate medical attention is necessary if these symptoms occur, given the serious complications that AFib can lead to, such as stroke, heart failure, and other heart-related issues. It is important for individuals with AFib to work with their healthcare professional to determine a target heart rate that balances symptom relief with safety.