I have a 50-year old client who is HIV positive and on treatment. A few years ago he was involved in a motor vehicle accident and sustained abdominal trauma. He had to undergo a splenectomy and several other laparotomies to treat enterocutaneous fistula. He had a complicated and prolonged recovery. At present he continues to complain about fatigue, reduced sitting tolerance, and dizziness. He was employed as a mechanic but could no longer lift heavy items therefore had to resign. I want to know to what extent his current complaints and reduced physical capacity is related to the accident only, or his hiv, or a combination of the 2?