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♦ Replace fluids: replace lost fluids and calories by drinking warm, sweet, caffeine-free <br /> nonalcoholic drinks and soup. <br /> The effects of cold stress may not be apparent to its victim. The first symptoms of hypothermia <br /> are uncontrollable shivering and the sensation of cold. The heartbeat slows and may become <br /> irregular, and the pulse weakens. As the condition worsens, severe shaking or rigid muscles may <br /> be evident. The victim may also have slurred speech, memory lapses, and drowsiness. Cool skin, <br /> slow, irregular breathing, and exhaustion occur as the body temperature drops even lower. This <br /> is a serious condition requiring immediate medical attention. <br /> Frostbite can occur without accompanying hypothermia. Frostbite occurs when the fluids around <br /> the body's tissues freeze. The most vulnerable parts of the body are the nose, cheeks, ears, <br /> fingers, and toes. Symptoms of frostbite include coldness and tingling in the affected part, <br /> followed by numbness; changes in skin color to white or grayish-yellow, initial pain which <br /> subsides as the condition worsens, and possibly blisters. Frostbite can cause irreversible tissue <br /> damage and requires immediate medical attention. <br /> Workers should protect their skin using sun block or clothing. Workers should also be familiar <br /> with the signs and symptoms of heat stress. Workers should use the buddy system to watch for <br /> signs of heat exhaustion—cramps,pale cool moist skin; excessive sweating; dizziness, nausea- <br /> and more advanced cases of heat stress. Workers should also drink plenty of water, an <br /> electrolyte drink(e.g., Gatorade) or other fluid on a regular basis. Also, a cool location for <br /> breaks should be identified. <br /> If necessary, the safety officer should adjust work/rest cycles to account for worker heat <br /> acclimatization, PPE, and whether conditions. For this site permeable personal protective <br /> equipment (PPE) is required. Assuming temperature acclimated workers are on the site, the <br /> guidelines for the work-rest cycle are as follows: <br /> • For temperatures at or below 78°F, an individual can work 60 minutes per hour <br /> • For temperatures between 78°F and 82D17, an individual can work 45 minutes per <br /> hour <br /> • For temperatures between 82°F and 86°F, an individual can work 30 minutes per <br /> hour <br /> • For temperatures above 86°F, an individual can work 15 minutes per hour <br /> For temperatures above 98°F, an individual should be provided with body cooling equipment <br /> CNCD:I,WARE=02- 0 d« 3-4 <br />