'elevated'
creatinineCreatinine clearance would depend on the actual values of the
creatinineCreatinine clearance. Numbers over 2 can signal kidney disease, as can happen in long term diabetics and those with chronic hypertension. If your mother is in this range, she should be evaluated by a kidney specialist. Numbers between 1 and 2 can result from severe dehydration, or rarely damage to, or obstruction of, the ureters (tubes which lead from the kidney to the bladder). If your mother's creatinine was completely normal prior to surgery, and elevated after the surgery, you should definitely ask your physician for an evaluation of this.