Which of the following are signs of heat stress in welders and a recommended prevention approach?

• A. Nausea, coughing, dizziness only; increase caffeine intake.
• B. Shivering and cold skin; move to sun exposure to cool down.
• C. Blurred vision only; ignore.
• D. Dizziness, headache, confusion, cramps; ensure hydration, breaks, shaded area, adjust pace.

Answer: (D)

Signs of heat stress come from the body showing it’s overheating and struggling to cool down. Dizziness and headache are common early indicators, while confusion points to more severe heat illness, and cramps often come from sweating and electrolyte loss. The best prevention approach combines staying hydrated, taking regular breaks in a shaded or cooler area, and adjusting how fast you work to avoid overexertion in hot conditions. This directly targets both reducing heat buildup and giving the body time to recover.

Other options don’t fit heat stress management: signs like shivering and cold skin indicate cold exposure, and cooling down should not involve more sun exposure. Focusing on a single symptom (like blurred vision) or telling someone to ignore warning signs is unsafe. Increasing caffeine intake can worsen dehydration and heat strain, not prevent it.