- indicated for
PSVT; - if arrhythmias are not due to reentry involving the AV node or sinus node (eg,
atrial flutter,
atrial fibrillation, atrial or ventricular tachycardias), adeno- sine will not terminate the arrhythmia but may produce transient AV or ventriculoatrial block that may clarify dx; - Dose: - half-life of adenosine is less than 5 seconds; - recommended initial dose is a 6-mg rapid bolus over 1 to 3 seconds' - dose should be followed by a 20-mL saline flush; - if no response is observed within 1 to 2 minutes, a 12-mg repeat dose should be administered in the same manner;