When a person losses fluid by sweating or bleeding what minerals are lost in greatest quantity?

When a person loses fluid through sweating or bleeding, the minerals lost in the greatest quantity are sodium and potassium. Sodium is particularly abundant in sweat, playing a crucial role in fluid balance and nerve function. Potassium, while less abundant in sweat than sodium, is essential for muscle function and maintaining cellular health. Both minerals are vital for overall physiological processes and need to be replenished after significant fluid loss.