🧪 Kidney Disease Labs Explained (What They Mean Normal Ranges) Understanding your kidney lab tests gives you power when living with chronic kidney disease (CKD). Labs aren’t just numbers — they tell the story of how your kidneys, heart, bones, and blood are working together. 🧬 Key Kidney Labs Explained eGFR – Estimated Glomerular Filtration Rate Measures how well your kidneys filter waste from your blood and helps determine CKD stage. • Men: 90 Women: 90 BUN – Blood Urea Nitrogen Shows how muc