Kidney Health Guide: Protecting Your Kidneys in Malaysia

Your kidneys are two bean-shaped organs, each about the size of a fist, located on either side of the spine below the rib cage. They perform several vital functions: - Filtering waste products and excess fluid from the blood to produce urine - Regulating blood pressure by controlling fluid volume and releasing the enzyme renin - Producing erythropoietin, a hormone that stimulates red blood cell production - Regulating electrolytes (sodium, potassium, calcium, phosphate) - Activating vitamin D for bone health Each kidney contains approximately one million tiny filtering units called nephrons. Kidney disease, regardless of cause, results in progressive loss of nephrons — reducing the kidney's filtering capacity. eGFR (estimated Glomerular Filtration Rate) measures what percentage of normal filtering function remains. Chronic Kidney Disease (CKD) stages: - Stage 1: eGFR 90 or above — normal filtering, but signs of kidney damage present (protein in urine) - Stage 2: eGFR 60 to 89 — mildly reduced - Stage 3: eGFR 30 to 59 — moderately reduced (most patients have no symptoms) - Stage 4: eGFR 15 to 29 — severely reduced, symptoms begin - Stage 5: eGFR below 15 — kidney failure, dialysis or transplant needed Malaysia statistics: Malaysia has approximately 50,000 dialysis patients, with around 7,000 new patients starting dialysis annually. The cost of dialysis is approximately RM 30,000 to 60,000 per patient per year — a massive burden on families and the healthcare system. Prevention through early detection and management is far more effective and affordable.

Chronic kidney disease earns its reputation as a "silent disease" — most patients have no symptoms until kidney function has declined to less than 25% of normal (Stage 3 to 4). Early-stage symptoms (often absent or vague): - Mild swelling of the ankles in the evening - Slightly reduced urine output (may be missed) - Mild fatigue (often attributed to other causes) - Frothy or foamy urine — indicating protein leakage into urine Later-stage symptoms (Stage 4 to 5): - Persistent fatigue and anaemia (kidneys not producing enough erythropoietin) - Significant swelling of ankles, legs, and face (fluid retention) - Shortness of breath (fluid accumulation) - Nausea, vomiting, and loss of appetite - Metallic taste in mouth and bad breath (uraemia) - Reduced urine output - Muscle cramps and restless legs - Itchy skin (phosphate accumulation) - High blood pressure that is difficult to control - Confusion in end-stage disease This is why annual kidney function blood tests and urine analysis are so important for anyone with diabetes, hypertension, or other risk factors. Catching CKD at Stage 1 to 2 allows interventions that can maintain quality of life and avoid or significantly delay the need for dialysis.

Whether you have established CKD or simply want to preserve healthy kidney function, these strategies make a meaningful difference. Control diabetes: HbA1c below 7% dramatically slows diabetic nephropathy progression. SGLT2 inhibitors (dapagliflozin, empagliflozin) have been shown to protect kidneys in diabetics beyond their glucose-lowering effect. Control blood pressure: ACE inhibitors and ARBs (perindopril, losartan, telmisartan) are first-choice antihypertensives for kidney patients as they also reduce protein leakage and slow CKD progression. Target below 130/80 mmHg. Avoid nephrotoxic medications: stop or minimise NSAIDs (ibuprofen, mefenamic acid, diclofenac). Inform all healthcare providers of your CKD status before starting new medications. Many common medications need dose adjustment in kidney disease. Stop smoking: smoking reduces blood flow to the kidneys and accelerates CKD progression. Stay hydrated: drink 1.5 to 2 litres of water daily (unless your doctor has advised fluid restriction). Dietary adjustments for CKD Stage 3 and above: a renal dietitian can provide personalised advice. General principles include limiting potassium-rich foods (bananas, potatoes, tomatoes) if blood potassium is high; limiting phosphate-rich foods (dairy, nuts, whole grains) if phosphate is elevated; moderating protein intake; and limiting salt to control blood pressure and fluid retention. Regular monitoring: at Klinik Muhibbah, we provide ongoing kidney function monitoring for patients with CKD, diabetes, and hypertension. Contact us at +60 7-251 1162 for an appointment. Hours: Mon–Thu & Sat 9AM–9PM, Fri 9AM–3PM, Sun 9AM–1PM.