Final answer:
The most comfortable technique for turning a patient with a lumbar-level complete spinal cord injury in bed is the log-roll, which maintains alignment and reduces the risk of further injury or discomfort.
Step-by-step explanation:
A patient who has sustained a lumbar-level complete spinal cord injury during a car accident may experience paralysis and significant loss of function below the level of injury. While in the hospital, appropriate bed positioning and turning techniques are essential to decrease the possibility of pressure ulcer development. The technique that would likely provide the MOST comfort to the patient while turning in bed would be the log-roll. This method involves moving the patient's body as a single unit to avoid twisting the spine, which minimizes discomfort and potential damage to the spinal cord. By keeping the alignment of the head, shoulders, and pelvis during a log-roll, there is less risk of aggravating the injury, while also maintaining comfort.