What dosage of adenosine is typically administered first to a patient in atrial tachycardia?

The typical first dosage of adenosine administered to a patient in atrial tachycardia is 6 mg. This dosage is established based on clinical protocols for managing certain types of supraventricular tachycardia, which includes atrial tachycardia. Adenosine works by temporarily blocking the conduction through the atrioventricular (AV) node, allowing for the restoration of normal sinus rhythm.

If the patient does not respond to the initial dose of 6 mg after a short interval, a second dose of 12 mg may be given. This stepwise approach allows for an effective balance between optimizing the anti-tachycardia effect and minimizing possible side effects. Using the appropriate initial dose is crucial in ensuring patient safety and effectiveness of treatment in emergency situations.