Question: What is the classic triad associated with chronic exposure to elemental mercury?
Answer: The article noted below states “…..chronic exposure can produce a classic triad of symptoms: tremors, gingivitis and erethism ((which includes emotional instability, depression, vasomotor disturbances, insomnia, memory loss, anorexia, etc.) as well as a variety of cutaneous, neurological, psychological and renal symptoms, but sometimes only vague and non-specific symptoms such as asthenia, anorexia, weight loss, general and muscular weakness are experienced. (Broussard LA et al. The toxicology of mercury. 2002 Lab Med 33:614-625 as cited in Broi U et al. Medico-legal aspects of self-injection of metallic mercury in cases of suicide or self-harming. 2017 J For Legal Med 50:12-19)