A 26-year-old woman is brought to emergency due to sudden onset of dizziness, vomiting, and headache while picking peaches. Her pulse is 50/min. Blood pressure is 90/60. Physical examination shows pinpoint pupils, generalized weakness, and diaphoresis. Following administration of atropine, the most appropriate pharmacologic treatment has which of the following mechanisms of action?
Anti-cholinergic; decreased presynaptic release of acetylcholine
Anti-cholinergic; decreased postsynaptic acetylcholine binding affinity
Anti-cholinergic; decreased synaptic activity of cholinesterase
Anti-cholinergic; increased synaptic cholinesterase regeneration
Anti-cholinergic; increased synaptic release of acetylcholine
Pro-cholinergic; decreased presynaptic release of acetylcholine
Pro-cholinergic; decreased postsynaptic acetylcholine binding affinity
Pro-cholinergic; decreased synaptic activity of cholinesterase
Pro-cholinergic; increased synaptic cholinesterase regeneration
Pro-cholinergic; increased synaptic release of acetylcholine
