Heat Illness Progression
Heat Cramps → Heat Syncope (fainting) → Heat Exhaustion → Heat Stroke. Heat stroke is a life-threatening emergency. Signs of heat stroke: core temp above 104°F, hot/dry skin (not always), confusion, unconsciousness. Call 911 immediately — do not wait. Cool the victim by any available means.
Prevention: Water, Rest, Shade
The OSHA heat illness prevention standard (high-heat procedures): 1 quart of water per hour minimum. Rest breaks in shade every hour. Buddy system for monitoring. Pre-shift briefing on heat index. When heat index exceeds 103°F, enhanced rest breaks are mandatory. Never push through extreme heat symptoms.
Acclimatization
New workers and those returning from absence need 7-14 days to acclimatize. Schedule 20% normal workload on day 1, increasing by 20% each day. High-heat days: assign experienced buddy to new workers. Monitor all workers closely in the first two weeks of hot weather season.
Cooling Measures
Cool water, shade, and air movement are your best tools. Electrolyte drinks are beneficial during extended heat exposure. Loose, light-colored clothing reduces heat absorption. Recognize that certain medications (diuretics, antihistamines) increase heat susceptibility. Notify your supervisor of any heat-related symptoms immediately.
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