Complex sentence: A mixing study is then performed, which consists of adding an equal volume of the patient's plasma to normal plasma; in this study, one would expect the clotting time to return to the normal range if there was only a deficiency of coagulation factors alone.
Split into simpler sentences: A mixing study is then performed, which consists of adding an equal volume of the patient's plasma to normal plasma. In this study, one would expect the clotting time to return to the normal range if there was only a deficiency of coagulation factors alone.