What changes in blood plasma volume, hemoglobin levels and hematocrit might be expected to occur in the first few days following an exhaustive, long duration exercise bout?

Question

What changes in blood plasma volume, hemoglobin levels and hematocrit might be expected to occur in the first few days following an exhaustive, long duration exercise bout?

Answer 1

Hematocrit might rise slightly if you got dehydrated enough to decrease the plasma volume. hemoglobin concentration in plasma would rise slightly due to the increased hematocrit, but the cellular concentration of hemoglobin would not change.