Ingestion signs of Abrin/Ricin toxicity can include which of the following?

• A. Bloody vomiting and diarrhea
• B. Hallucinations
• C. Hair loss
• D. Rash

Answer: (B)

Ingestion of Abrin or ricin primarily irritates the gastrointestinal tract, but with enough toxin absorbed into the bloodstream, it can affect other organ systems as well. Hallucinations reflect central nervous system involvement that can occur in severe or rapidly progressive poisoning, where the toxin’s disruption of cellular protein synthesis leads to systemic effects and mental status changes. Because CNS manifestations like confusion, agitation, or delirium can accompany toxic exposure, hallucinations are a plausible sign following ingestion. The other options are less typical for acute ingestion: hair loss and rash are not expected acute signs, and while GI bleeding can occur with severe mucosal injury, it’s less characteristic as a stand-alone ingestion sign compared with CNS involvement in many educational contexts.