✅ 1. Blood Tests
These measure kidney function by checking how well your kidneys filter waste.
- Serum Creatinine
- Measures creatinine level in blood.
- Normal range:
- Men: ~0.7–1.3 mg/dL
- Women: ~0.6–1.1 mg/dL
- High value → kidney function may be reduced.
- eGFR (Estimated Glomerular Filtration Rate)
- Calculated from creatinine, age, gender.
- Normal: >90 mL/min/1.73m²
- <60 for 3+ months = Chronic Kidney Disease (CKD).
- BUN (Blood Urea Nitrogen)
- Normal: 7–20 mg/dL.
- High → kidney issues or dehydration.
✅ 2. Urine Tests
- Urinalysis
- Checks protein, glucose, blood, infection.
- Urine Albumin-to-Creatinine Ratio (ACR)
- Detects early kidney damage (microalbuminuria).
- Normal: <30 mg/g.
✅ 3. Imaging Tests
- Ultrasound (Ultrasound Whole Abdomen (USG Whole Abdomen)or CT scan
- Looks for structural problems like blockages, stones, or size changes.
✅ 4. Advanced Tests (if needed)
- Cystatin C test (alternative to creatinine for GFR).
- Kidney biopsy (only if severe issues suspected).
Best Screening Combo
✔ Serum Creatinine + eGFR
✔ Urine ACR
✔ Ultrasound (if chronic issues or abnormalities found)