A patient with stable narrow-complex tachycardia with an in-site peripheral IV is refractory to the first dose of adenosine starts with 6 mg bolus followed by saline flush 20 ml.
What is adenosine?
Adenosine is the drug of first choice for the treatment of stable supraventricular tachycardia if the vagal maneuver is not effective. It is an endogenous nucleoside that acts on two receptors, A1 and A2.
With this information, we can conclude that a patient with stable narrow-complex tachycardia with an in-site peripheral IV is refractory to the first dose of adenosine starts with 6 mg bolus followed by saline flush 20 ml.
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