Kidney Function Tests Decoded!
Kidney Function Tests Decoded!
What's This About?
Ever wondered what those kidney function tests really mean? Let's break down the basics of eGFR and why it's important.
Contents
- What is eGFR?
- Why eGFR Matters
- Limitations of eGFR
What is eGFR?
Estimated Glomerular Filtration Rate (eGFR) is a test that helps measure how well your kidneys are filtering blood. It's calculated using blood levels of markers like creatinine and cystatin C. A healthy eGFR typically ranges from 90 to 120 mL/min, indicating good kidney function.
Why eGFR Matters
eGFR is crucial in detecting kidney disease early before symptoms appear. It helps doctors monitor kidney function over time and determine if treatment is working. Lower eGFR values suggest decreased kidney function and may require further investigation or intervention.
Limitations of eGFR
While eGFR is a useful tool, it's not perfect and may be influenced by factors like age, race, and muscle mass. It's important to consider these factors when interpreting results. When in doubt, additional tests or confirmatory measures may be needed for accurate assessment.
FAQs
What is eGFR used for?
eGFR measures how well kidneys are filtering blood.
Is eGFR always accurate?
eGFR can be influenced by factors like age and muscle mass.
What eGFR value is healthy?
A healthy eGFR typically ranges from 90 to 120 mL/min.
Can eGFR change over time?
Yes, eGFR can change and should be monitored regularly.
Wrapping Up
eGFR is a vital test for kidney health, but understanding its limitations is key.
Additional References
- Stevens LA, Coresh J, Schmid CH, et al. A new equation to estimate glomerular filtration rate. Ann Intern Med 2009; 150:604.
- Levey AS, Coresh J, Tighiouart H, et al. Measured and estimated glomerular filtration rate: current status and future directions. Nat Rev Nephrol 2020; 16:51.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic.