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Wednesday, March 18, 2015

Gas poisoning What is Gas Poisoning

When solids and liquids, such as mineral acids, ammonia, cyanides, and mercury, are heated, many poisonous gases are released.
Among these poisonous gases, are mineral acids, ammonia, cyanides and mercury.
Other types of poisonous gases are specially manufactured for war purposes.
Poisonous gases affect the body in various ways, and many are potentially fatal.

Gas poisoning symptoms

Carbon Monoxide Poisoning

Carbon monoxide, and mixtures that contain it, prevent the blood from carrying oxygen to tissues;

Hydrogen Sulfide Poisoning

Hydrogen sulfide causes respiratory paralysis;

Carbon Tetrachloride Poisoning

Carbon tetrachloride damages the liver and kidneys;

Carbon Disulfide Poisoning

Carbon disulfide produces nerve damage and ultimately causes paralysis and psychoses;

Tear Gases Poisoning

Tear gases such as xylyl bromide, severely irritate the eyes, nose, and throat;

Nerve Gases Poisoning

Various nerve gases prevent the proper functioning of nerve impulses;

Chlorine and Phosgene Poisoning

lung irritant gases, such as chlorine and phosgene, attack the eyes, nose, throat, and lungs;

Vesicant gases Poisoning

Vesicant gases, such as mustard gas and lewisite gas (containing arsenic), cause blisters and ulcers on the skin;

Nauseant gases Poisoning

Nauseant gases, such as chloropicrin, induce vomiting;

Nose irritant gases Poisoning

Nose irritant gases, such as diphenylchlorarsine, cause pain, sneezing, depression, and sometimes vomiting.

How do people come in contact with poisonous gases?

  • Carbon monoxide is the most poisonous gas likely to be present in domestic surroundings. For example, when an automobile engine has been left running in an enclosed space, such as a garage, carbon monoxide can accumulate to toxic levels.
  • Carbon tetrachloride is used in dry cleaning.
  • Hydrogen sulfide is a poisonous gas produced in some chemical processes.
  • Tear gases are used by police and military personnel.
  • Carbon disulfide is used in the rubber industry and in making rayon.

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What is Attention Deficit Disorder Definition

Attention deficit disorder is a condition that usually affects school-aged children and is characterized by inattention, impulsivity, or hyperactivity.
These disorders are occasionally a result of environmental stress.
Most cases, however, are felt to have a biological basis.
Attention deficit disorders should be differentiated from mental retardation, schizophrenia, or a manic-depressive state.
The onset is before the age of 7 years, and an estimated 5 percent of school-aged children exhibit characteristics of some form of learning disorder.
 I.Q. tests taken by these children are normal, and there are no neurologic abnormalities.
Attention deficit disorders may result in poor school performance.
In some cases, there are specific learning disabilities, such as visual-motor or speech defects.

Attention Deficit Disorder Treatment

Treatment of Attention Deficit Disorder is complex and should be coordinated with specific educators. There is no proof that dietary changes are beneficial.
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Choriocarcinoma – What is Choriocarcinoma



Choriocarcinoma is a cancerous growth of the outer layer of the membrane (chorion) that surrounds a fetus in the womb.
Choriocarcinoma is relatively rare condition in the United States, occurring in about 1 out of every 45,000 pregnancies, and is more likely to occur in women over the age of 40.

Choriocarcinoma symptoms

An obstetrician looks for signs of the disease in pregnant women who have had the formation of a hydatidiform mole, which leads to an unusually large uterus for that stage of pregnancy.
But mole formations are not necessarily a sign of choriocarcinoma; they occur in about 1 out of every 2,000 pregnancies (especially in older women), and over 80 percent of these moles are benign.
Other symptoms of choriocarcinoma may include vaginal bleeding and extreme nausea.

After the removal of a hydatidiform mole, the effectiveness of treatment can be assessed by measuring human chorionic gonadotropin (HCG) levels in the blood. Normally, these levels should drop dramatically after the removal of the mole.
If the levels do not drop, this is a sign of a choriocarcinoma.
Repeated blood tests are made to determine the level of these hormones in the mother’s bloodstream. If this level remains above normal, treatment with anticancer drugs (chemotherapy) is given to destroy the growth.
The hydatidiform mole may also be suctioned from the uterus; occasionally, a hysterectomy will be performed (especially with older patients).
Choriocarcinoma may, on rare occasion, appear in the testes.
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