🩺 eGFR Calculator - Kidney Function Test
eGFR Calculator UK - Frequently Asked Questions
What is eGFR?
eGFR (estimated Glomerular Filtration Rate) measures how well your kidneys are filtering blood. It's calculated from your blood creatinine level, age, gender, and ethnicity. Normal eGFR is 90+ mL/min/1.73m². Lower values indicate reduced kidney function.
What is a normal eGFR range?
Normal eGFR is 90 mL/min/1.73m² or higher. Stage 2 CKD (60-89) shows mild reduction. Stage 3a (45-59) and 3b (30-44) show moderate reduction. Below 30 indicates severe kidney disease requiring specialist care.
How is eGFR calculated?
This calculator uses the CKD-EPI equation, the most accurate formula endorsed by UK NICE guidelines and NHS. It considers serum creatinine, age, gender, and ethnicity to estimate kidney filtration rate.
What causes low eGFR?
Low eGFR can be caused by chronic kidney disease, diabetes, high blood pressure, kidney infections, dehydration, or certain medications. Always consult your GP or nephrologist for proper evaluation and treatment.