arsenic poisoning


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arsenic

 (As) [ahr´sĕ-nik]
a chemical element, atomic number 33, atomic weight 74.92. (See Appendix 6.) It is toxic by inhalation or ingestion, and carcinogenic (see arsenic poisoning). In nature it occurs usually as one of its salts; in human environments it is often a pollutant in mining regions, and is used in dyes, household pesticides, and compounds used in agriculture. Arsenic compounds called arsenicals were formerly widely used in medicine.
arsenic poisoning poisoning due to systemic exposure to inorganic pentavalent arsenic. Arsenic is cumulative, storing permanently in hair, nails, and bone, and children are particularly susceptible. Arsenic is odorless and flavorless and has been found in elevated levels in the drinking water that flows through arsenic-rich rocks, leading to serious health problems in some countries. The antidote for arsenic poisoning is dimercaprol. Acute arsenic poisoning, which may result in shock and death, is marked by skin eruptions, swelling of eyelids and limbs, vomiting, diarrhea, and cramps. Chronic arsenic poisoning (called also arsenism), due to ingestion of small amounts over a long period of time, is marked by skin pigmentation with scaling, keratosis of the palms and soles, white lines on the fingernails, peripheral neuropathy, and confusion.
arsenic trioxide an oxidized form of arsenic, used in weed killers and rodenticides. It is also administered intravenously as an antineoplastic in the treatment of acute promyelocytic leukemia.

arsenic poisoning

toxic effect caused by the ingestion or inhalation of arsenic or a substance containing arsenic, an ingredient in some pesticides, herbicides, dyes, and medicinal solutions. Small amounts absorbed over a period of time may result in chronic poisoning, producing nausea, headache, coloration and scaling of the skin, hyperkeratoses, anorexia, and white lines across the fingernails. Ingestion of large amounts of arsenic results in severe GI pain, diarrhea, vomiting, and swelling of the extremities. Renal failure and shock may occur, and death may result. Determination of the presence of arsenic in the urine, hair, or fingernails is diagnostic.
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Arsenic keratoses

arsenic poisoning

Toxicity caused by arsenic, a toxic trace metal that is a key component of herbicides, insecticides, rodenticides, wood preservatives and used in manufacturing glass and paints. The usual fatal dose is 100–200 mg; there are ± 1900 arsenic poisonings/year (US), 85% of which are accidental by children < age 6; the rest are adult suicides.
 
Clinical findings
Vague gastrointestinal (nausea, vomiting) and neurologic (apprehension and shortness of breath) symptoms, and a classic sign—“garlic” breath—followed by dysphagia, tachycardia, severe abdominal pain and bloody diarrhoea, then by renal and cardiac failure and circulatory collapse.
 
Treatment
Dimercaprol (BALS).

arsenic

a chemical element, atomic number 33, atomic weight 74.92, symbol As. See Table 6. Arsenic compounds have been widely used in veterinary medicine, but they have been replaced for the most part by antibiotics, which are less toxic and equally effective. Still used in homeopathy. Some of the arsenicals are used for infectious diseases, especially those caused by protozoa, and some skin disorders and blood dyscrasias also are still treated with arsenic compounds. Since arsenic is highly toxic it must be administered with caution. The antidote for arsenic poisoning is dimercaprol (BAL). See also arsenical.

arsenic bush
Senna floribunda, S. occidentalis.
copper-chrome-arsenic wood preservative
arsenic deficiency
evidence on the response to arsenic supplementation of the diet suggests that it may exert a beneficial effect on patients by controlling deleterious intestinal organisms.
inorganic arsenic poisoning
can occur after ingestion or cutaneous absorption. Acute poisoning is manifested by abdominal pain, diarrhea and dehydration. Chronic poisoning shows a syndrome of emaciation, chronic diarrhea, poor haircoat and greatly reduced productivity.
organic arsenic poisoning
arsanilate poisoning in pigs is characterized by blindness and incoordination and a high recovery rate; poisoning by 4-hydroxyphenyl arsenic acid also in pigs causes a syndrome of tremor and incoordination but only if the affected animals are exercising at the time.
arsenic poisoning
see inorganic arsenic poisoning, organic arsenic poisoning (above).
arsenic trioxide
AsO3, pollutant on pasture from roasting of arsenical and some iron ores.
References in periodicals archive ?
Clinical aspects of chronic arsenic poisoning due to environmental and occupational pollution in and around a small refining spot.
In Death Sentence, Bledsoe almost makes readers feel firsthand the pain of arsenic poisoning.
Strong evidence links arsenic poisoning with cancer, but it remains difficult to ascertain how heavy and prolonged the exposure must be to trigger the disease.
Attorneys representing victims of arsenic poisoning insist these cases are straightforward, as long as the plaintiffs have evidence to show the industry's wrongdoing.
As many as three million of these wells contain high arsenic concentrations, causing arsenic poisoning to reach potentially epidemic proportions.
Arsenic poisoning was suspected because his symptoms got worse at home and indicated possible poisoning, Navarro wrote.
I hope to take what I've learned in Taiwan, a place that has explored the field of groundwater contamination and arsenic poisoning for decades, and apply it to the arsenic removal technology in my hometown to benefit the people.
The cause was believed to be arsenic poisoning - a substance that the Victorians commonly used for all sorts of purposes, from restorative potions to flypapers.
Back in the 1880s it was home to Victorian female serial killer Mary Ann Cotton, believed to have murdered an estimated 22 men, women and children by arsenic poisoning.
Study leader Charles Harvey, an associate professor of civil and environmental engineering at MIT, believes these fish ponds may be a major contributor to the arsenic poisoning that is now endemic to Bangladesh.
Munir, co-founder of two human rights organizations, died of arsenic poisoning on a flight from Jakarta to Amsterdam in September 2004.
There are numerous geographical locations across the world where high levels of arsenic in the ground waters has caused great concern, especially in the Indo-Bangladesh region where over a million people are reported to be suffering from arsenic poisoning.