“Drying out” because of reduced fluid intake or excessive fluid loss. The degree of dehydrationDehydration “Drying out” because of reduced fluid intake or excessive fluid loss. The degree of dehydration can be determined by gently pinching and twisting the skin and releasing it, allowing the skin to fold and flatten (the turgor test). can be determined by gently pinching and twisting the skin and releasing it, allowing the skin to fold and flatten (the turgor test).