Confused with Result
My mother Age 76 years weight 54 Kg Height 54 BP 140/60 has a Near NORMAL Urine Routine Test without any RBC or CAST but with fair number of Epithelial cells and 5-6 Pus Cell under HPF, 24 Hrs Protein urine shows 17 mg of Protein / 100 ml or total 90 mg urine protein in 24 Hrs. Hb is 11.3, ESR is 47 and USG showed Normal Kidneys with 9 cm length. However Fasting Glucose is 121 mg /100 ml, Blood Urea is 54 mg/dl which are on higher side. Creatinine is 1.7 mg/100 ml and corrected Creatine Clearance is only 29.5 ml/Min ( Urinary Creatinine is 121.4 mg/100 ml). She takes about 1200 ml water / day (voluntarily for many years) and Urine Output is 530 ml. She leaves in Kolkata which produces lots of sweat in summer (as on now). There is no Physical symptoms like edema. Heart is normal in ECG but have Diastolic Disfunction Gr I in Echo with EF 66%.
Doctor had recommended that she is in CKD Level 4 based on Creatinine level.
Now my Questions 1. In CKD level 4 howcome Urine R/E is Normal and absence of Microalbumiania ? 2. Can there be any other reason except CKD ? 3. How to confirm CKD in this case ?