my wife had body temp 103 degree with vomiting 10 to 12 times no 19th May and was per doctor advise she is in hospital with saline .Her creatinine level is found as 4.56.she is now with normal body temp but with body pain.She is passing urine good qty normal colour for every half an hour.no vomiting now and also normal bp.Is it a kidney failure and can it be cured with medicene?She is 48 years and fatty.