A 50 Year Old Lady After Having Many Episodes Of

A 50 year old lady after having many episodes of loose motions and vomittings admitted in emergancy in unconsious state...on exam she has nrml bp..nrml spo2...nrml blood counts...urea creatinine very much raised raised ..usg abdomen..ct head r nrml...ABG is nrml...
after a treatmnt for 1-2 days she had decline in renals..but consious level is not improving..wat to do next ????