An arrhythmia is a disorder that affects the normal heart rate . With an arrhythmia, the heart tends to beat too slow (bradycardia), too fast (tachycardia), or irregularly. These disorders can affect the amount of blood pumped by the heart.
An arrhythmia is a disorder that affects the normal heart rate . With an arrhythmia, the heart tends to beat too slow (bradycardia), too fast (tachycardia), or irregularly. These disorders can affect the amount of blood pumped by the heart.