need kidney status, urea 5.9, creatinin 1.1
Normal blood urea is 3.6-7.1 millimoles per liter (mmol/L) or
10-20 milligrams per deciliter (mg/dL)
Normal serum creatinine is 0.2-0.5 mg/dl or 15-40 umol/L for men or
0.3-0.9mg/dl or 25-70 umol/L for women
As you have not mentioned the unit, check out from above mentioned normal level.