Asbestos Abatement >> How To Test The Air After Asbestos Has Been Remove

Route of Entry Inhalation, ingestion. II. Toxicology Clinical evidence of the adverse effects associated with exposure to asbestos is present in the form of several well-conducted epidemiological How To Test The Air After Asbestos Has Been Remove studies of occupationally exposed workers, family contacts of workers, and persons living near asbestos mines. 

These How To Test The Air After Asbestos Has Been Remove studies have shown a definite association between exposure to asbestos and an increased incidence of lung cancer, pleural and peritoneal mesothelioma, gastrointestinal cancer, and asbestosis. The latter is a disabling fibrotic lung disease that is caused only by exposure to asbestos. 

Exposure to asbestos has also been associated with an increased incidence of asophageal, kidney, laryngeal, pharyngeal, and buccal cavity cancers. 
As with other known chronic occupational diseases, disease associated with asbestos generally appears about 20 years following the first occurrence of How To Test The Air After Asbestos Has Been Remove exposure.

There are no known acute effects associated with exposure to asbestos. Epidemiological studies indicate that the risk of lung cancer among exposed workers who smoke cigarettes is greatly increased over the risk of lung cancer among non-exposed smokers or How To Test The Air After Asbestos Has Been Remove exposed nonsmokers. 

These studies suggest that cessation of smoking will reduce the risk of lung cancer for a person exposed to asbestos, but will not reduce it to the same level of risk as that existing for an How To Test The Air After Asbestos Has Been Remove exposed worker who has never smoked. Signs and Symptoms of Exposure-Related Disease.

The signs and symptoms of lung cancer or gastrointestinal cancer induced by exposure to asbestos are not unique, except that a chest X-ray of an How To Test The Air After Asbestos Has Been Remove exposed patient with lung cancer may show pleural plaques, pleural calcification, or pleural fibrosis. 

Symptoms characteristic of mesothelioma include shortness of breath, pain in the walls of the chest, or abdominal pain. Mesothelioma has a much longer latency period compared with lung cancer (40 years versus 15-20 years), and mesothelioma is therefore more likely to be found among How To Test The Air After Asbestos Has Been Remove workers who were first exposed to asbestos at an early age. 

Mesothelioma is always fatal. Asbestosis is pulmonary tibrosis caused by the accumulation of asbestos fibers in the lungs. Symptoms include shortness of breath, coughing, fatigue, and vague feelings of sickness. When the How To Test The Air After Asbestos Has Been Remove fibrosis worsens, shortness of breath occurs even at rest. 

The diagnosis of asbestosis is based on a history of exposure to asbestos, the presence of How To Test The Air After Asbestos Has Been Remove characteristics radiologic changes, end-inspiratory crackles (rales), and other clinical features of fibrosing lung disease. Pleural plaques and thickening are observed on X-rays taken during the early stages of the disease. 

Asbestosis is often a progressive disease even in the absence of continued exposure, although this appears to be a highly individualized characteristic. In severe cases, death may be caused by respiratory or cardiac failure. IV. Surveillance and How To Test The Air After Asbestos Has Been Remove Preventive Considerations.

As noted above, exposure to asbestos has been linked to an increased risk of lung cancer, mesothelioma, gastrointestinal cancer, and asbestosis among occupationally How To Test The Air After Asbestos Has Been Remove exposed workers. Adequate screening tests to determine an employee's potential for developing serious chronic diseases, such as a cancer, from exposure to asbestos do not presently exist. 

However, some tests, particularly chest X-rays and pulmonary function tests, may indicate that an employee has been overexposed to asbestos, increasing his or her risk of developing How To Test The Air After Asbestos Has Been Remove exposure related chronic diseases. It is important for the physician to become familiar with the operating conditions in which occupational exposure to asbestos is likely to occur. 

This is particularly important in evaluating medical and work histories and in conducting physical examinations. When an active employee has been identified as having been overexposed to asbestos measures taken by the employer to eliminate or mitigate further How To Test The Air After Asbestos Has Been Remove exposure should also lower the risk of serious long-term consequences. 

The employer is required to institute a medical surveillance program for all employees who are or will be exposed to asbestos at or above the permissible exposure limit. All examinations and How To Test The Air After Asbestos Has Been Remove procedures must be performed by or under the supervision of a licensed physician, at a reasonable time and place, and at no cost to the employee. 

Although broad latitude is given to the physician in prescribing specific tests to be included in the medical surveillance program, OSHA requires inclusion of the following How To Test The Air After Asbestos Has Been Remove elements in the routine examination: (i) Medical and work histories with special emphasis directed to symptoms of the respiratory system, cardiovascular system, and digestive tract.


Completion of the respiratory disease How To Test The Air After Asbestos Has Been Remove questionnaire contained in Appendix D. (iii) A physical examination including a chest roentgenogram and pulmonary function test that includes measurement of the employee's forced vital capacity (FVC) and forced expiratory volume at one second (FEV1). 

Any laboratory or other test that the examining physician deems by sound medical practice to be necessary. The employer is required to make the prescribed tests available at least annually to those employees covered; more often than specified if recommended by the How To Test The Air After Asbestos Has Been Remove examining physician; and upon termination of employment. 

The employer is required to provide the physician with the following information: A copy of this standard and appendices; a description of the employee's duties as they relate to asbestos exposure; the How To Test The Air After Asbestos Has Been Remove employee's representative level of exposure to asbestos; a description of any personal protective and respiratory equipment used.

Information from previous medical examinations of the How To Test The Air After Asbestos Has Been Remove affected employee that is not otherwise available to the physician. Making this information available to the physician will aid in the evaluation of the employee's health in relation to assigned duties and fitness to wear personal protective equipment, if required. 

The employer is required to obtain a written opinion from the examining physician containing the results of the medical examination; the physician's opinion as to whether the employee has any detected medical conditions that would place the employee at an increased risk of How To Test The Air After Asbestos Has Been Remove exposure-related disease, Any recommended limitations on the employee or on the use of personal protective equipment.

A statement that the employee has been informed by the physician of the results of the medical examination and of any medical conditions related to asbestos exposure that require further explanation or treatment. This written How To Test The Air After Asbestos Has Been Remove opinion must not reveal specific findings or diagnoses unrelated to exposure to asbestos and a copy of the opinion must be provided to the affected employee.

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