Autonomic Pharmacology Practice Test

A 45-year-old agricultural worker is brought to the emergency department by his coworkers. He is confused, sweating profusely, and has difficulty breathing. Physical examination reveals pinpoint pupils, diffuse muscle fasciculations, and wheezing on lung auscultation. He is diagnosed with organophosphate poisoning. He is intubated and treated with atropine.

A 6-year-old boy is brought to the emergency department after his mother found him eating berries from a plant in their garden, identified as Atropa belladonna (deadly nightshade). The child is agitated, has a high fever, flushed skin, dry mucous membranes, and markedly dilated pupils. His heart rate is 160/min.