Stage 4 Kidney Disease (CKD G4): eGFR 15-29

What Stage 4 Feels Like

Common symptoms: persistent fatigue (anemia + uremia), loss of appetite and weight, itchy skin (uremic pruritus), swelling in feet/ankles, shortness of breath on exertion, difficulty concentrating ('brain fog'), and disturbed sleep. These reflect accumulated uremic toxins, anemia, fluid overload, and acidosis.

Laboratory pattern: hemoglobin often <10, phosphorus rising (may exceed 5.5), PTH elevated (secondary hyperparathyroidism), metabolic acidosis (bicarbonate <22), and potassium trending up. Each needs a management protocol — this is the stage of 'the five disease-modifying systems' (anemia, MBD, acidosis, BP, nutrition).

Cardiovascular risk is very high: CKD stage 4-5 carries a higher risk of CV death than the general population even without diabetes. Statins are standard; blood pressure control becomes aggressive.

The Full Management Protocol

Anemia: iron repletion first (ferritin 200-500, TSAT 20-50%), then ESA targeting Hb 10-11.5 g/dL (never >13 — TREAT trial safety data). Blood transfusions avoided where possible (sensitization for future transplant).

CKD-MBD: phosphorus target 3.5-5.5 mg/dL with dietary restriction + phosphate binders (calcium-based or non-calcium per calcification risk), vitamin D repletion (25-OH-D >30), and active vitamin D (calcitriol/paricalcitol) for PTH >9x ULN.

Acidosis: sodium bicarbonate if serum bicarbonate <22 mEq/L (target 22-25) — acidosis accelerates CKD progression (randomized trial evidence: CORAL-like studies).

Potassium: dietary restriction if >5.0; consider potassium binders to maintain RASi/SGLT2i therapy. Hyperkalemia causes ~30% of emergency dialysis starts — prevention is planning.

The Preparation Checklist (Do This Now)

1. Nephrologist-led care with a documented plan. 2. eGFR slope documented quarterly — your expected dialysis timeline. 3. Modality education COMPLETED (in-center HD vs home HD vs PD vs transplant) with informed choice documented. 4. Vascular access: AVF creation referral when eGFR approaches 20-25 (maturation takes 2-4 months). 5. Transplant evaluation: living donor screening, pre-transplant workup, tissue typing. 6. Hepatitis B vaccine completed (poor response later). 7. Dietitian-led renal diet established. 8. Family/caregiver involvement in planning.

The evidence is clear: patients who plan early (CHOICE study, USRDS data) start dialysis with AVF (not catheters), choose PD/home modalities more often, and have better survival and quality of life. The 60-70% catheter-start rate in India is largely a planning failure — not a medical necessity.

Financial planning: dialysis costs ₹12,000-25,000/month in India (HD) — understand insurance coverage, Ayushman Bharat eligibility, state schemes, and employer coverage BEFORE dialysis is needed. PD under PMNDP and state programs is cheaper long-term for eligible patients.