An occupational therapist is assigned to a unit where two isolated individuals have C. diff. Which precaution is necessary for the OT when visiting the affected patient's room to limit spread to themselves and others?

The NBCOT certification exam is taken by occupational therapists and occupational therapy students. The exam covers tehse topics: Evaluation and Assessment; Analysis and Interpretation; Intervention Management; and Competency and Practice Management with a total of 3 clinical simulation test (CST) items and 170 multiple choice questions. The total time of the test is four hours.