What symptoms are consistent with anticholinergic poisoning?

The symptoms consistent with anticholinergic poisoning include dry mouth, dilated pupils, and hallucinations due to the disruption of acetylcholine activity in the body, which is characteristic of anticholinergic toxicity.

In cases of anticholinergic poisoning, the lack of acetylcholine function results in various symptoms related to the inhibition of the parasympathetic nervous system. A dry mouth occurs because anticholinergic agents significantly reduce salivary gland secretion. Similarly, dilated pupils (mydriasis) are a result of reduced constrictor muscle activity in the iris, leading to enlarged pupils. Hallucinations can arise from central nervous system effects, where the altered neurotransmitter levels disrupt normal cognitive processes.

Other options present symptoms that are more indicative of different types of poisoning. Increased salivation and bradycardia align more with cholinergic toxicity, while pinpoint pupils and diarrhea are associated with opioid overdose or organophosphate poisoning. Respiratory depression and hypotension could occur from a wide range of causes but are not hallmark symptoms of anticholinergic poisoning specifically. Therefore, the combination of dry mouth, dilated pupils, and hallucinations clearly points to anticholinergic effects.