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Arrhythmia
An irregularity in the heartbeat rhythm, which can range from minor to serious health concerns.
Fibrillation
An uncoordinated twitching of the muscle fibers, particularly noted in the heart muscle.
Palpitation
A sensation in which a person is aware of an irregular, hard, or rapid heartbeat.
Cardiac Enzyme
Biomarkers measured to evaluate heart function, particularly in the diagnosis of a heart attack or myocardial infarction.
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