Final answer:
If the patient has a complete cord injury resulting from tenderness and instability around the fourth and fifth thoracic vertebrae, they may have NO sensory finding beneath the umbilicus.
Step-by-step explanation:
If the patient has a complete cord injury resulting from tenderness and instability around the fourth and fifth thoracic vertebrae, they may have NO sensory finding beneath the umbilicus. Sensory findings below the umbilicus, such as the shoulders, mid nipple line, and knees, would require an intact spinal cord to transmit sensory signals.