7-Heat and Light 2 Part 1.pdf

LOW PRESSURE AND HEATRELATED HEALTH PROBLEMS (A) EXPOSURE TO HIGH TEMPERATURE: Outdoors occupational exposure: • Agriculture • Construction • Geologic exploration. • Commercial fishing. • Military. Indoors occupational exposure: • Factories • Foundries • Bakeries • Engine rooms • Laundries • Kitc...

LOW PRESSURE AND HEATRELATED HEALTH PROBLEMS (A) EXPOSURE TO HIGH TEMPERATURE: Outdoors occupational exposure: • Agriculture • Construction • Geologic exploration. • Commercial fishing. • Military. Indoors occupational exposure: • Factories • Foundries • Bakeries • Engine rooms • Laundries • Kitchen Foundry workers performing metal pour into a sand filled form for steel manufacture HEALTH EFFECTS OF EXPOSURE TO HIGH TEMPERATURE: • The direct effects of heat exposure are burns, syncope attack, heat exhaustion, heat stroke and heat cramps and occupational cataract. • The indirect effects are decreased efficiency, increased fatigue and enhanced accident rates. Heat Illness Cause Symptoms treatment Painful cramps Cramps excess loss of salt Rest, cooling and fluid/electrolyte Fainting attack Rest in a recumbent position, cooling and liquids syncope Exhaustion Stroke MEDICAL EMERGENCY Pooling of blood in extremities and skin Excessive water and salt depletion. Profuse sweating, headache, weakness, pallor, NV, dyspnea, and palpitations Failure of thermal regulatory center ConfusiondisorientationDrowsiness-Body Temp >40 °C Cooling and fluid replacement Emergency Cooling Water Spray--FanShadeWater-IV Fluid Replacement-Transport OCCUPATIONAL CATARACT History of occupational exposure to heat, Infrared radiation, ionizing radiation. • Posterior polar cataract • PREVENTION AND CONTROL a-Environmental and Engineering measures (Control of high air temperature): • Isolation of the hot equipment, • Shedding place • Reduce sun load from the roof by water spray or reflecting material, • ventilation and air. PREVENTION AND CONTROL b-Measure to the workers: • Protective clothes: light, loose white clothes, face shield & special goggles. • Limit the number & time of exposure. • Local ventilation by air fans. • Salted cool water. • Acclimatization. Public Health and Community Medicine Department PREVENTION AND CONTROL c-Medical care: • Pre-placement examination: avoid obese or those with C.V & kidney disease. • Periodic examination. • Health education B) EXPOSURE TO LOW TEMPERATURE: • • Outdoors: commercial fishing, military personnel, agriculture, divers . Indoors: meat packers, refrigerators, manufacture of ice & ice cream. B) EFFECTS OF LOW TEMPERATURE: Health effects General Excessive general body chilling Local A. transient inflammatory reaction Trench foot (immersion foot) Frost bite