See also:
Adenosine is indicated in the ACLS algorithm "[Adult] Tachycardia With a Pulse" for patients with
- stable tachycardia and narrow QRS complex
- stable tachycardia and regular and monomorphic but wide QRS complex (this presumes a supraventricular rhythm with an abnormal conduction pathway causing the wide QRS)
- unstable tachycardia with narrow complexes (although synchronized cardioversion is also indicated and usually given first)
Adenosine temporarily slows conduction through the AV node, which may