Went to an Urgent Care to have a deep splinter removed from toe along with a Tetanus shot. 3 days later started having really bad flank pain (both sides). Low urine out put and edema in feet, hands, and face. Not sure if the these symptoms are related to the original problem, but felt I would mention it. From what I have researched so far, appears to be renal failure. Please advise thank you. 46 year old female, 5' 5", 160lbs. hypertension, 25mg. Cozaar bid.