Comprehensive kidney health assessment including creatinine, urea, uric acid, and electrolytes. Early detection of CKD, kidney stones, and renal disorders.
A Kidney Function Test (KFT), also known as Renal Function Test (RFT), is a panel of blood and urine tests that evaluate how well your kidneys are filtering waste products, regulating electrolytes, and maintaining fluid balance. The kidneys filter approximately 200 litres of blood daily — and their failure can be silent until very late stages.
India has one of the highest burdens of Chronic Kidney Disease (CKD) in the world, with an estimated 17% of adults affected. The dangerous reality is that CKD often has no symptoms until 60–70% of kidney function is already lost. Regular KFT testing is the most effective strategy for early detection and intervention.
Chronic Kidney Disease (CKD) often causes no symptoms in early stages. By the time symptoms like swelling, fatigue, or reduced urination appear, significant kidney damage may have already occurred. Annual KFT testing — especially for diabetics, hypertensives, and those over 40 — is essential for early detection and prevention.
| Parameter | Normal Range | What It Indicates |
|---|---|---|
| Serum Creatinine | M: 0.7–1.3 mg/dL | F: 0.5–1.1 mg/dL | Primary kidney filtration marker |
| Blood Urea Nitrogen (BUN) | 7–20 mg/dL | Protein waste — elevated in kidney disease |
| Urea | 15–40 mg/dL | Kidney waste clearance efficiency |
| Uric Acid | M: 3.5–7.2 | F: 2.6–6.0 mg/dL | Gout risk, kidney stones |
| eGFR | > 90 mL/min/1.73m² | Overall filtration rate — key CKD staging |
| Sodium (Na+) | 135–145 mEq/L | Fluid balance regulation |
| Potassium (K+) | 3.5–5.0 mEq/L | Cardiac and muscle function |
| Chloride (Cl-) | 96–106 mEq/L | Acid-base balance |
| Calcium | 8.5–10.5 mg/dL | Bone health, kidney stone risk |
| Phosphorus | 2.5–4.5 mg/dL | Bone metabolism; elevated in CKD |
| BUN/Creatinine Ratio | 10:1 – 20:1 | Distinguishes pre-renal vs renal causes |