The purpose of this study is to evaluate the safety of a standard volume replacement called HES 130/0.4 (Voluven) during surgery on recovery. HES 130/0.4 (Voluven) may offer an alternative to pure fluid replacement solutions that are associated with problems after surgery including fluid overload and respiratory difficulties. The safety of HES 130/0.4 (Voluven) will be evaluated by examining its effects on kidney function, and coagulation parameters and platelet (part of the blood that help it clot) function.