During prolonged rehab, how should fluid intake be adjusted?

• A. Adjust based on sweating and tolerance
• B. Maintain a fixed amount every hour regardless of sweating
• C. Only drink when completely thirsty
• D. Never adjust fluid intake based on conditions

Answer: (A)

Fluid intake during prolonged rehab must be tailored to how much you sweat and how well you tolerate fluids. Sweat rate varies with temperature, humidity, workload, and gear, so some firefighters lose a lot of fluid while others lose less. By matching drinking to your actual fluid losses and your comfort level, you stay hydrated without overwhelming the stomach or risking dilution of electrolytes. Thirst alone is not a reliable cue—thirst often lags behind actual dehydration, so waiting until you feel thirsty can lead to dehydration before you drink. A fixed amount every hour ignores individual differences and changing conditions, and never adjusting ignores the dynamic nature of the job. If sweating heavily, increase intake accordingly; if fluids upset your stomach or you’re rapidly gaining GI discomfort, scale back and sip more slowly. Monitoring weight changes or urine color can help you gauge whether your intake is keeping pace with losses.