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Physician's Guidance

Evaluation guided by Maruti Hospital clinical guidelines.

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Medical Oversight

Dr. R. Gopalakrishnan, MD, DM (Nephrology)

Senior Nephrologist & Renal Specialist — Maruti Hospital

"Early screening and objective metrics help prevent chronic disease complications before symptoms manifest."

Consult Dr. R. Gopalakrishnan, MD, DM (Nephrology)

Clinical Formula & Evidence

The 2021 CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) creatinine equation is the worldwide standard for assessing renal filtration capacity. It calculates the volume of blood filtered per minute normalized to a standard body surface area of 1.73 m².

Clinical Reference Stages

Stage 1 (eGFR ≥ 90) Normal or high kidney filtration rate. Kidney function is healthy unless structural or protein leakage markers are present.
Stage 2 (eGFR 60–89) Mildly decreased filtration. Often age-related; monitor blood pressure, hydration, and blood sugar annually.
Stage 3a (eGFR 45–59) Mild-to-moderate loss of kidney function. Nephrology consultation recommended for metabolic and BP optimization.
Stage 3b (eGFR 30–44) Moderate-to-severe loss of kidney function. Medication dosage review, strict BP control (<130/80), and dietary monitoring required.
Stage 4 (eGFR 15–29) Severely decreased kidney function. Comprehensive renal management required to prevent or delay dialysis.
Stage 5 (eGFR < 15) Kidney failure / End-stage renal disease (ESRD). Urgent nephrology evaluation for renal replacement therapy.

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eGFR Kidney Function & CKD Staging

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