A 29 year old man presents with acute onset severe low back pain radiating to both legs, difficulty passing urine and numbness in the perianal area. He has reduced anal tone on examination. What is the most appropriate next step in management?AArrange urgent lumbar spine MRI and neurosurgical reviewBStart non steroidal anti inflammatories and review in 2 weeksCRefer to physiotherapy as an outpatientDRequest lumbar spine X ray and treat as muscular back painEPrescribe Amitriptyline for neuropathic pain and dischargeCheck my answer