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Figure 78-5
A, Atrial fibrillation
with a ventricular response of 190 beats/min. B,
After the injection of 6 mg adenosine, the ventricular response increased to 240
beats/min. (From White RD: Acceleration of the ventricular response in
paroxysmal lone atrial fibrillation following the injection of adenosine. Am J Emerg
Med 11:245, 1993.)
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