Final answer:
The follow-up dose of adenosine for managing SVT unresponsive to the first 6 mg dose is 12 mg, and if necessary, another 12 mg dose may be given after 1 to 2 minutes.
Step-by-step explanation:
The initial dose of adenosine for the management of supraventricular tachycardia (SVT) is 6 mg administered rapidly as an intravenous (IV) bolus. If the first dose of adenosine is unresponsive, the recommended follow-up dose is an increased amount of 12 mg, which may be given one to two minutes after the initial dose. If necessary, another 12 mg dose can be administered after an additional 1 to 2 minutes if the SVT remains unresponsive. It's important to monitor the patient closely during this procedure due to the potential for brief asystole and other side effects.
The follow-up dose of adenosine for the management of supraventricular tachycardia unresponsive to the first adenosine dose depends on the patient's response and the specific situation. The initial dose of adenosine is typically 6 mg given rapidly via intravenous push, followed by a rapid flush of normal saline. If the initial dose is unsuccessful, a second dose of 12 mg may be administered.