Which is NOT a symptom of fluoride poisoning when swallowed?

Fluoride poisoning can lead to various symptoms when fluoride is ingested, primarily through its corrosive effects on the gastrointestinal system and its systemic toxicity at high levels. Common symptoms associated with fluoride ingestion typically include stomach cramps, diarrhea, and vomiting. These manifestations result from irritation and damage to the stomach lining and intestinal tract due to the presence of fluoride.

Chest pain is not a typical symptom of fluoride poisoning following ingestion. While chest pain can indicate several conditions such as cardiac issues or acid reflux, it does not align with the physiological effects of fluoride toxicity. The most relevant signs of fluoride ingestion are related to gastrointestinal distress rather than sensations or pains in the chest area, which makes it distinct from the other symptoms listed. Thus, identifying chest pain as NOT a symptom directly associated with fluoride poisoning is accurate and underscores the need to focus on the primary areas of impact, which are the digestive system.