The PALS teaching of SVT (Supraventricular Tachycardia) is to revert to the sinus rhythm as early as possible, to prevent the onset of CHF or it’s progression. A patient, already presenting in the cardiogenic shock (pale, lethargy, PR 180 /mt.) due to the 2nd episode of SVT has no time for vagal maneuvers and must be given Adenosine by a rapid push method (1st dose 0.1mg/kg up to 6 mg and subsequent 0.2 mg/kg up to 12mg). Meanwhile, the preparations must be done for the synchronised cardioversion (1st dose 0.05 -1J/Kg) and subsequent dose of 2 J/Kg). If the cardiac functions improve, the need for other means of treating shock and mechanical ventilation would logically　 decrease. These methods are so specific that if they fail to terminate the SVT, one must revisit the diagnosis, because the next drug Amiodarone though used in SVT, but is also used in ventricular arrhythmias.