A patient with supraventricular tachycardia (SVT) at a rate of 195/min is developing symptoms of shock and unconsciousness. At this time, what would you recommend?
a. Vagal stimulation through carotid sinus massage
b. Administration of a strong beta-adrenergic agent
c. Synchronous electrical shock (cardiover-sion)
d. Administration of a bolus of intravenous lidocaine
ANS: C
If the patient with SVT is ill or unstable, the treatment of choice is immediate synchronized elec-trical cardioversion
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