KnowraTachycardiaLinked fromLinked fromThe 6 pages that link to Tachycardia, each with the reason it gives.All 6Broader topic 1Related 3Compared with 2AtropineRelated: Atropine can accelerate the heart by reducing parasympathetic restraint.BradycardiaCompared with: It is the rate-direction opposite of bradycardia.Heart rateBroader topic: It names an abnormally fast rate, which may have many causes.PalpitationsCompared with: A fast measured rate is one possible cause of palpitations, not their definition.PseudoephedrineRelated: Adrenergic stimulation can increase heart rate in some people taking pseudoephedrine.Sweating sicknessRelated: Historical accounts describe rapid heartbeat among the illness's alarming symptoms.