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-` TABLE 2 <br /> . .,v HEAT STRESS SYMPTOMS,PREVENTION & TREATMENT <br /> Heatstroke and Heat Hyperpyrexia <br /> rasa <br /> } Symptoms Heatstroke: (1) hot dry skin; red, mottled, or cyanotic; (2) high and rising core <br /> tempeT.ature, 40-50C or over; (3) brain disorders; mental confusion, loss of <br /> consciousness,convulsions,or coma,as core temperature continues to rise, <br /> Fatal if treatment delayed <br /> r 'ty <br /> Neat Hyperpyrexia: milder form;,rare temperature lower, less severe brain disorders; <br /> soma:sweating. <br /> ` Treatment Heatstroke: immediate and rapid cooling by immersion in chilled water with massage, <br /> or ty wrapping in wet sheet with vigorous fanning with colo]dry air. <br /> r Avoid overcooling. 'Treat shock if present. <br /> Heat hyperpyrex,a: less drastic cooling required if sweating still present and core <br /> temperature<4030C. <br /> Prevention Medical screening of workers. Selection based on health and physical fitness. <br /> A:climatization for 8 to 14 days by graded work and heat exposure. Monitoring <br /> 1 r workers during sustained work in severe heat. <br /> Heat Syncope <br /> ,t <br /> y1 Symptoms Fainting while standing erect and immobile in heat. <br /> Treatment Remove to cooler area. Recovery prompt and Complete. <br /> Prevention Acclimatization. Intermittent activity to assist venous return to heart. <br /> Heat Exhaustion <br /> i <br /> t <br /> Symptoms (1)Fatigue,nausea,headache,giddiness;(2)skin clammy and moist,complexion pale, <br /> `Wt muddy,or with hectic flush;(3)may faint on standing,with rapid thready pulse and low <br /> blood pressure; (4) oral temperature normal or low but rectal temperature usually <br /> "Md elevated (37.5 to 38.50C). Water-restriction type: urine volume small, high]) <br /> concentrated. Salt-restriction type: urine less concentrated,chlorides less than 3 glliter. <br /> uS3 <br /> E <br /> } � <br /> Treatment Remove:to cooler environment. Administer salted fluids by mouth or give intravenous <br /> infusions of normal saline(0.9 percent)if patient is unconscious or vomiting. Keep at <br /> rest until urine volume and salt content indicate that salt and water balances have been <br /> restored. <br /> Prevention Acclimatize workers using a breaking-in schedule for 1 or 2 weeks. Supplement dietary <br /> salt only during acclimatization. Ample drinking water to be available at all times and <br /> to be taken frequent)y during work day, <br /> .tet <br /> r�- <br /> ui <br /> i <br /> C-3 <br /> W <br /> t= 172-19.R1 316191 <br />