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Medical surveillance


Workplace health surveillance or occupational health surveillance (U.S.) is the ongoing systematic collection, analysis, and dissemination of exposure and health data on groups of workers. The Joint ILO/WHO Committee on Occupational Health at its 12th Session in 1995 defined an occupational health surveillance system as “a system which includes a functional capacity for data collection, analysis and dissemination linked to occupational health programmes”.

The concept is new to occupational health and is frequently confused with medical screening. Health screening refers to the early detection and treatment of diseases associated with particular occupations, while workplace health surveillance refers to the removal of the causative factors.

The mission of a medical surveillance program is to keep workers healthy and ensure that employers are meeting OSHA standards in health and safety. Medical surveillance has an emphasis on prevention: it is designed to detect potential workplace hazards before irreversible health effects can occur. Clinicians with expertise in occupational health, industrial exposures, and respiratory protection screen workers with physical examinations, blood testing, spirometry (a measurement lung function), and audiometry. Screenings are performed at set intervals, often annually. The clinicians providing medical surveillance services include board-certified occupational and environmental medicine physicians, mid-level practitioners, nurses, and NIOSH-certified spirometry technicians.

Medical surveillance targets actual health events or a change in a biologic function of an exposed person or persons. Medical surveillance is a second line of defense behind the implementation of direct hazard controls such as engineering controls, administrative controls, and personal protective equipment. NIOSH recommends the medical surveillance of workers when they are exposed to hazardous materials. The elements of a medical surveillance program generally include the following:


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