Final answer:
When intra-spinal pain therapy is discontinued, the catheter needs to be removed by a healthcare professional in a sterile manner to minimize the risk of infection.
Step-by-step explanation:
When intra-spinal pain therapy is discontinued, the catheter used for the therapy needs to be removed. The removal process is called catheter removal. It is typically performed by a healthcare professional, such as a doctor or nurse. The catheter is slowly and carefully withdrawn from the patient's body, ensuring that it is done in a sterile manner to minimize the risk of infection.