eGFR – what do your numbers mean?
Have you had your eGFR level measured and are unsure what the numbers mean? Here's a clear explanation of the normal range, what a high or low level might indicate, and when it makes sense to get tested.
What is the normal range for eGFR?
What is the normal range for eGFR?
eGFR (estimated glomerular filtration rate) is an important indicator of kidney function and is typically calculated from creatinine levels in the blood, as well as the patient's age and gender. The normal range for eGFR in adults is generally above 90 mL/min/1.73 m², but values between 60-89 mL/min/1.73 m² can also be normal depending on age. eGFR naturally declines with age, and values below 60 mL/min/1.73 m² indicate possible kidney disease. Pregnancy can significantly increase eGFR values (often by 20-50%) due to increased kidney function during gestation. There may be minor variations between laboratories, and it is important to interpret results in a clinical context.
What does a low level mean?
A low eGFR level, typically below 60 mL/min/1.73 m², can indicate impaired kidney function or chronic kidney disease. Symptoms may include fatigue, swollen legs, altered urine output, and high blood pressure. Common causes include diabetes, high blood pressure, glomerulonephritis, and long-term use of nephrotoxic medications. Elderly individuals and patients with existing kidney disease are particularly vulnerable. A low eGFR should prompt contact with a doctor for further investigations and possible referral to a nephrologist. Treatment may include lifestyle changes, medication adjustments, and control of underlying diseases.
What does a high level mean?
A high eGFR level is rarely a problem in itself, but very high values can be seen in pregnant women or individuals with increased kidney function. It can also be due to confounding factors such as low muscle mass or measurement inaccuracies. Symptoms are often absent, but if values are abnormally high without an obvious cause, a doctor should be consulted to rule out misinterpretations or rare conditions. It is important to ensure correct sample collection and consider repeated measurements to confirm the results.
Get your eGFR level tested
At Celto, you can order a blood test for eGFR directly online – without a referral from your doctor and without long waiting times. We have over 34 testing locations at public hospitals throughout Denmark, and your samples are analyzed in the same accredited laboratories used by the rest of the healthcare system. You will receive your results directly on sundhed.dk, just like all other blood tests from the public system.
How it works
When you order a blood test from Celto, you choose which markers you want tested – no doctor's referral needed. After your purchase, you will receive an email with a link to our booking system, where you choose a time and location. The blood sample itself is taken by authorized healthcare professionals and typically takes only a few minutes.
Where you can get tested
Celto has over 34 testing locations at public hospitals and clinics throughout Denmark. You choose the location that suits you best among our partners, and there are typically available appointments within a few days. Find your nearest testing location →
How to get your results
Your blood samples are analyzed in the same laboratories used by your own doctor and the rest of the healthcare system, with the exact same quality and same tests. You will receive your results directly on sundhed.dk within a few working days, and Celto will also send an easy-to-understand overview of your values so you know what the numbers mean.