During heavy working periods, how much water or electrolyte supplement should each rescue team member consume, and how often?

• A. 16 ounces every 60 minutes
• B. 8-12 ounces every 30 minutes
• C. 4-6 ounces every 15 minutes
• D. 2-4 ounces every 10 minutes

Answer: (B)

During heavy work, you sweat a lot and lose both water and electrolytes. The goal is to replace those losses at a steady, manageable pace so you maintain hydration and electrolyte balance without overloading the stomach. Drinking about 8 to 12 ounces of fluids every 30 minutes gives a practical rhythm that keeps plasma volume supported and helps replace sodium and other electrolytes when using electrolyte drinks. This frequency matches typical sweat losses during sustained exertion and PPE use, while the volume is enough to move fluid without causing GI distress or bloating.

Options that push larger amounts less often can fall short of covering ongoing losses, while very small amounts at very frequent intervals can be awkward to maintain during demanding tasks. The chosen rate provides a balance: steady intake, good tolerance, and effective maintenance of hydration and electrolyte status during extended heavy work.