Final answer:
The nurse's priority during the rehabilitation of a male motocross racer with anterior spinal cord syndrome at T10 is to prevent urinary tract infection.
Step-by-step explanation:
The nurse's priority during the rehabilitation of a 25-year-old male patient with anterior spinal cord syndrome at T10, who is a professional motocross racer and has a history of tobacco use, alcohol abuse, and marijuana abuse, is to prevent urinary tract infection (UTI).
Patients with spinal cord injury, especially those with neurogenic bladder dysfunction, are at high risk for developing UTIs due to impaired bladder function and decreased ability to empty the bladder completely. The nurse should implement measures such as encouraging frequent voiding, maintaining hygienic perineal care, monitoring for signs of UTI (such as increased urinary frequency, urgency, dysuria, and cloudy or foul-smelling urine), and administering appropriate antibiotics if necessary.