Editing Tachycardia (section)

==Management==
The management of tachycardia depends on its type (wide complex versus narrow complex), whether or not the person is stable or unstable, and whether the instability is due to the tachycardia.<ref name="ACLS2010"/> Unstable means that either important organ functions are affected or [[cardiac arrest]] is about to occur.<ref name=ACLS2010 /> Stable means that there is a tachycardia, but it does not seem an immediate threat for the patient's health, but only a symptom of an unknown disease, or a reaction that is not very dangerous in that moment.

===Unstable===
In those that are unstable with a narrow complex tachycardia, intravenous [[adenosine]] may be attempted.<ref name=ACLS2010 /> In all others, immediate [[cardioversion]] is recommended.<ref name=ACLS2010 />

=== Stable ===
If the problem is a simple acceleration of the heart rate that worries the patient, but the heart and the general patient's health remain stable enough, it is possible to correct it by a simple deceleration using some physical maneuvers called [[vagal maneuver]]s.<ref>{{Cite journal |last=Page |first=Richard L. |last2=Joglar |first2=José A. |last3=Caldwell |first3=Mary A. |last4=Calkins |first4=Hugh |last5=Conti |first5=Jamie B. |last6=Deal |first6=Barbara J. |last7=Estes |first7=N.A. Mark |last8=Field |first8=Michael E. |last9=Goldberger |first9=Zachary D. |last10=Hammill |first10=Stephen C. |last11=Indik |first11=Julia H. |last12=Lindsay |first12=Bruce D. |last13=Olshansky |first13=Brian |last14=Russo |first14=Andrea M. |last15=Shen |first15=Win-Kuang |date=5 April 2016 |title=2015 ACC/AHA/HRS Guideline for the Management of Adult Patients With Supraventricular Tachycardia: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society |url=https://www.ahajournals.org/doi/10.1161/CIR.0000000000000311 |journal=Circulation |language=en |volume=133 |issue=14 |doi=10.1161/CIR.0000000000000311 |issn=0009-7322}}</ref> But, if the cause of the tachycardia is chronic (permanent), it would return after some time, unless that cause is corrected.

Besides, the patient should avoid receiving external effects that cause or increase tachycardia.

The same measures than in unstable tachycardia can also be taken, with medications and the type of cardioversion that is appropriate for the patient's tachycardia.<ref name="ACLS2010" />