1．Palpitation-Asensationofrapidorirregularbeatingoftheheart,oftenassociatedwithanxietyorexcitement.
2．Flutters-Asensationofrapid,irregular,orintermittentbeatingoftheheart,oftenfeltinthechestorthroat.
3．Throbbing-Apulsatingorrhythmicsensation,oftenfeltinthechestorhead,thatcanbecausedbyexcitement,anxiety,orphysicalexertion.
4．Racingheart-Asuddenincreaseinheartrate,oftenaccompaniedbyfeelingsofanxietyorfear.
5．Poundingheart-Asensationofforcefulorheavybeatingoftheheart,oftenassociatedwithphysicalactivityoremotionalstress.
6．Skippedbeats-Asensationofmissedorskippedheartbeats,oftencausedbyanxietyoranirregularheartbeat.
7．Tachycardia-Arapidheartrate,usuallydefinedasarestingheartrateofmorethan100beatsperminute.
8．Bradycardia-Aslowheartrate,usuallydefinedasarestingheartrateoflessthan60beatsperminute.
9．Arrhythmia-Anirregularheartbeat,oftencausedbyanunderlyingheartconditionormedication.
10．Cardiacarrest-Asuddenlossofheartfunction,oftencausedbyaheartattackorotherseriousmedicalcondition.