Over the past several weeks, a 2-year-old girl has exhibited developmental regression, abnormal sleep patterns, anorexia, irritability, and decreased activity. These symptoms have progressed to acute encephalopathy with vomiting, ataxia, and variable consciousness. The family recently moved, and they are in the process of restoring the interior of their home. For the most likely toxic substance involved in the cases above, select the appropriate treatment
Atropine and pralidoxime (2-PAM) N- acetylcysteine (Mucomyst) Dimercaptosuccinic acid (DMSA, succimer) Naloxone (Narcan)