Severe kidney damage, preparing for dialysis or transplant.

eGFR 15–29

What is Stage 4 CKD?

Severe Kidney Damage with Significantly Reduced Function

Stage 4 chronic kidney disease represents a severe reduction in kidney function, with an estimated glomerular filtration rate (eGFR) between 15 and 29. At this stage, the kidneys struggle to effectively remove waste and balance fluids and minerals in the body. Symptoms are often more noticeable, and complications such as anemia, bone and mineral disorders, fluid buildup, and poorly controlled blood pressure may develop. Because kidney function is significantly compromised, Stage 4 is a critical time for careful medical management and forward planning.

Preparation stage

Preparing for Dialysis or Kidney Transplant

Planning ahead improves outcomes.

During Stage 4 CKD, preparation for possible kidney replacement therapy becomes an important part of care. This includes learning about dialysis options and understanding whether a kidney transplant may be appropriate in the future. Early planning gives you time to explore treatment choices, prepare physically and emotionally, and make informed decisions alongside your healthcare team. Referral to a nephrologist is essential at this stage to ensure specialized care and proper planning.

Managing complications

Managing Symptoms of Stage 4 CKD

Addressing the effects of advanced kidney disease.

As kidney function continues to decline, symptoms and complications may become more challenging. These can include swelling from fluid retention, changes in electrolyte levels, anemia-related fatigue, bone and joint problems, and rising blood pressure. Treatment at this stage focuses on managing symptoms, correcting imbalances, and preventing complications from worsening. With close medical supervision, many symptoms can be controlled, helping to improve comfort and quality of life.

Nutrition & habits

Dietary and Lifestyle Modifications

Supporting kidney function through daily choices.

Nutrition plays a vital role in managing Stage 4 CKD. A carefully structured kidney-friendly diet, often guided by a dietitian, helps reduce the workload on the kidneys. This may involve limiting sodium to control blood pressure and swelling, moderating protein intake, and carefully managing phosphorus and potassium levels. In addition to diet, maintaining appropriate physical activity, managing weight, and avoiding smoking or alcohol can support overall health and reduce added stress on the body.

Close follow-up

The Role of Regular Monitoring

Frequent assessments guide treatment decisions.

Frequent and close monitoring is essential during Stage 4 CKD. Regular blood and urine tests help assess kidney function and track changes in electrolytes, waste levels, and overall health. Blood pressure monitoring and additional tests for complications such as anemia or bone disease provide valuable information for guiding treatment decisions. Consistent follow-up appointments allow healthcare providers to adjust medications, manage symptoms, and plan the next steps in care effectively.