Kidney failure

in acute renal failure the assessment of this is by understanding that there is oliguria urine volume in some cases less tan 400 mls per 24 hrs.
anuria no urine passed
decreased urinary output retains certain biochemical substances in the blood  urea and creatinine  so these will be raised
Potassium and sodium chloride concentrations will cause sodium and water retention leading to oedema
this might lead to cardiac failure if not treated
if you cannot regulate urea and elctrolytes this leads to nausea, vomiting drowsiness confusion cardiac arrithmias rapid breathing (Kussmauls breathing)  twitching ....coma