mercury poisoning
MONDO:0018020
Mercury poisoning is caused mainly through ingestion or inhalation of any of the 3 forms of mercury, elemental, organic, and inorganic. Exposure to elemental mercury affects the pulmonary (inhalation of mercury vapors causes coughing, chills, fever, shortness of breath), dermatological (mild swelling, vesiculation, scaling, irritation, urticaria, erythema and allergic contact dermatitis accompanied by pain), and peripheral and central nervous (CNS) systems (depression, paranoia, extreme irritability, hallucinations, inability to concentrate, memory loss, hands, head, lips, tongue, jaw and eyelids tremors, weight loss, perpetually low body temperature, drowsiness, headaches, insomnia, fatigue). Exposure to inorganic mercury generally causes development of a metallic taste, local oropharyngeal pain, nausea, vomiting, bloody diarrhea, colic abdominal pain, renal dysfunction and, neurologic abnormalities; while that to organic mercury can lead to delayed neurotoxicity.
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Mercury poisoning
Mercury poisoning is a type of metal poisoning due to exposure to mercury. Symptoms depend upon the type, dose, method, and duration of exposure. They may include muscle weakness, poor coordination, numbness in the hands and feet, skin rashes, anxiety, memory problems, trouble speaking, trouble hearing, or trouble seeing. High-level exposure to methylmercury is known as Minamata disease. Methylmercury exposure in children may result in acrodynia (pink disease) in which the skin becomes pink and peels. Long-term complications may include kidney problems and decreased intelligence. The effects of long-term exposure to methylmercury at very low doses are unclear. Forms of mercury exposure include metal, vapor, salt, and organic compound. Most exposure is from eating fish, amalgam-based dental fillings, or exposure at a workplace. In fish, those higher up in the food chain generally have higher levels of mercury, a process known as biomagnification. Less commonly, poisoning may occur as a method of attempted suicide. Human activities that release mercury into the environment include the burning of coal, incineration of trash, and mining of gold. Tests of the blood, urine, and hair for mercury are available but do not relate well to the amount in the body. Prevention includes eating a diet low in mercury, removing mercury from medical and other devices, proper disposal of mercury, and not mining further mercury. In those with acute poisoning from inorganic mercury salts, chelation with either dimercaptosuccinic acid (DMSA) or dimercaptopropane sulfonate (DMPS) appears to impr...
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