tachyarrhythmias(心搏過快)

症狀/併發症(symptom/complication)	@heartbeat might feel like a strong pulse in your neck @a fluttering, racing beat in your chest @feelings of discomfort @weakness @shortness breath @Faint @sweaty @dizzy
病因(etiology)	|high sympathetic tone ||drugs |||Sympathomimetic agents: isoprotereno, epinephrine |||Vagolytic agent: atropine |||Amphetamine-like amine substances |||Caffeine-containing substances: tea, coffee ||febrile condition: infection or heat stroke ||Hyperthyroidism(甲狀腺機能亢進)/thyrotoxicosis(甲狀腺毒症): usually occur in young women ||dehydration or hypovolume ||blood loss/bleeding ||anemia ||hypoxemia(低血氧症) classification |Paroxysmal(陣發型) |ustained(持續型): longer than 30 seconds |Nonsutained(非持續型): do not exceed 30 seconds |Recurrent(反覆型): |Incessant(持續不斷): longer than ustained |Monomorphic |Polymorphic
檢查/準則(examination/criteria)
治療(treatment)
鑑別診斷(Differential Diagnosis)
流行病學(Epidemiology)	+most common sinus node rhythm

=tachycardia

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