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Hypersensities to chemical substances arise from: |
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Definition
-Chemicals in processed foods
-Synthetic materials
-Cosmetics
-Toiletries |
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Occupational Safety and Health Administration
-Regulates hazardous materials in the work place |
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A pesticide which does not break down and can gradually accumulate in the environment, in our foods, and in our bodies. |
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Effects of chemicals on our bodies: |
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Definition
-Tissue damage at the site of entry.
-The chemical can travel through our bloodstream and effect other organs.
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-Our liver is responsible for the inactivation and removal of wastes.
-Often chemicals bypass the liver and accumulate in the body. |
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-An antiseptic used in hospitals for many years.
-It is absorbed through the skin and after repeated exposure is known to cause brain damage. |
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-Chemicals used to soften plastics.
-Found in baby bottle caps and toys.
-Put children at risk. |
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-A hardening agent found in plastics.
-Used in baby bottles and water bottles.
-Mimic the hormone estrogen and act physiolocially within tissues.
Believed to lead to infertility and endocrine-sensitive cancers. |
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-A chemical believed to cause altered menstrual cycles, spontaneous abortions, and stillbirth. |
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Chemical effects on cells: |
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Definition
- Damage cell membrane
-Cause swelling of cell
-Lead to rupture of cell
-Alter metabolic pathway
-Cause mutations which lead to cancer. |
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-A heavy metal found in batteries, piping, and paint.
-Can accumulate in tissues over long-term exposure.
-Stored in bone in the body
-Can vaporize over time
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The craving for non-food substances such as clay. |
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-Hemolytic Anemia (destruction of erythrocytes leading to low hemoglobin levels)
-Lead Colic (inflammation and ulceration of digestive tract)
-Inflammation of the kidney tubules
-Neuritis (inflammation and demyelinationof peripheral nerves)
-Encephalopathy (edema and degeneration on neurons in the brain) |
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How lead effects children:
(even in low doses) |
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Definition
-Seizures
-Convulsions
-Delayed development
-Intellectual Impairment
-Irreversible brain damage |
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Ways to detect lead poisoning: |
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Definition
-By bone defects
-By lead lines in the bones or on the gingiva and gums adjacent to the teeth |
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-Particulates such as asbestos and silica
-Gases such as Sulfur Dioxide and Ozone
-Solvents such as carbon tetrachloride |
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-Irritation of the eyes and nose
-Inflammation of the respiratory tract causing pneumonitis
-Inflammation of the liver cells causing hepatic damage |
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Sources of toxic inhalents: |
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Definition
-Factories
-Laboratories
-Mines
-Insecticides
-Aerosols
-Air pollution
-Paints, Glues |
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-Found in things such as automobile exhaust
-Displaces oxygen from hemoglobin
-Can lead to death during prolonged exposure
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Effects of Cigarette Smoking: |
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Definition
-Emphysema
-Bronchitis
-Lung cancer
-bladder cancer
-peptic ulcers
-cardiovascular disease
-infertility
-stillbirth
-low birth weight |
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An excessive elevation in body temperature |
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Who is at risk for hyperthermia? |
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Definition
-older people
-infants
-cardiac patients |
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Syndromes associated with hyperthermia: |
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Definition
-Heat cramps and muscle spasms caused by a loss of electrolytes.
-Heat Exhaustion with sweating, headache, nausea, and syncope (fainting)
-Heat stroke with shock, coma, and high core body temperature
-Vasodilation
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-Vascular occlusion leading to necrosis and gangrene
-Loss of sensation
-Lethargy and Confusion
-Pulse and respirations slow
-Vasoconstriction and increased blood viscosity
-Hypovolemic shock (low blood pressure) |
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How to treat Hypothermia:
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Definition
By gradual warming and fluid replacement in order to maintain adequate circulation. |
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-The sun
-Radioactive Minerals in the soil
-Nuclear reactors
-Diagnostic treatments such as X-ray |
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-X-rays and Gamma rays
-Protons and Neutrons |
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How radiation emissions are measured: |
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How the amount of radiation absorbed in the body is measured: |
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In RADS (radiation-absorbed doses) |
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Cellular effects of Radiation: |
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Definition
Effects cells that undergo rapid mitosis such as epithelial cells, bone marrow, and the gonads.
DNA is altered causing cross-linkages and mutations
Cancer is often the result of prolonged radiation exposure. |
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Results from exposure to large amounts of radiation
Damage to bone marrow, digestive tract, and Central Nervous System.
Bone Marrow replacement must be done or victims will die within a few days. |
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Effects of noise on the ears: |
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Definition
May rupture the tympanic membrane (eardrum) or damage nerve cells in the inner ear. Nerve cell damage is irreversible. |
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Bites and stings may cause disease by: |
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Definition
-Direct injection of animal toxin. Ex: Spider bites, snake bites
-Transmission of infectious agents through animal or insect vectors. Ex: Rabies
-Allergic reaction to insect's secretion. Ex: Bee stings which cause anaphylactic shock |
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Escherichia coli (E. coli) |
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Definition
-Part of the normal intestinal flora
-Transmitted by the oral-fecal route
-Can cause gastroenteritis, vomiting, diarrhea
-Also known as "Traveler's Diarrhea"
-Can cause Hemolytic Uremic Syndrome (HUS) which causes damage to the renal tubules. |
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Infection associated with contaminated poultry or food handlers who are a carrier (they act as a reservoir). |
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Common bacterium in processed meat products such as sausage or ham. |
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Causes dysentery (bloody diarrhea) that is extremely dangerous.
Transmitted primarily through unwashed hands. |
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A plastic added to food and milk to allow dilution of the food with water.
Reacts as a protein and can go unnoticed.
Can cause acute renal failure and death. |
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