P: Immobilized PatientsI: Repositioning every 2 hours.C: Compared with no repositioning.O: Prevent the risk of pressure ulcers.T: Within a 6-hour period following admission.Clinical Question: “In immobilized patients (patient population), how does repositioning every 2 hours (intervention) compared to no repositioning (comparison) prevent the risk of pressure ulcers (outcome) within 6 hours following admission (time)?”3-4 pages4-5 Articles as references and within the last three years.