The companion text for the third edition of "Health Unit Coordinating" is a series of practice exercises for transcribing handwritten doctor's orders. To facilitate an experimental learning process, the manual includes requisitions and a written version of a computer program to simulate a typical hospital system. The authors have also provided a clinical evaluation section designed to evaluate objectively and record student performance in the clinical setting. A computer program simulating common hospital systems is included to allow students to practice inputting doctor's orders, and handwritten physicians orders' prepare students for the clinical work environment.