Final answer:
Adenosine is administered intravenously for the treatment of supraventricular tachycardia (SVT). The initial dosage ranges from 6 mg to 12 mg and may be increased up to a maximum of 18 mg.
Step-by-step explanation:
The correct administration and initial dosage for the drug Adenosine depend on the medical condition and individual patient characteristics. Adenosine is primarily used for the treatment of supraventricular tachycardia (SVT). It is administered intravenously and the initial dosage ranges from 6 mg to 12 mg. The dosage may be increased up to a maximum of 18 mg if necessary. The drug is given rapidly as a bolus injection, followed immediately by a saline flush to ensure proper delivery to the heart.