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Updated: Jun 29, 2025

Physiology Lab Demonstration: Glomerular Filtration Rate in a Rat
Published on: July 26, 2015
Estimated glomerular filtration rate in clinical practice: Consensus positioning of the Brazilian Society of
Gianna Mastroianni Kirsztajn1,2, Geraldo Bezerra da Silva Junior1,3, Artur Quintiliano Bezerra da Silva1,4
1Sociedade Brasileira de Nefrologia, São Paulo, SP, Brazil.
This study reviews chronic kidney disease (CKD) assessment, focusing on serum creatinine and estimated glomerular filtration rate (GFR). It addresses controversies, including race correction removal, and provides clinical practice recommendations.
Area of Science:
- Nephrology
- Clinical Pathology
- Laboratory Medicine
Background:
- Chronic kidney disease (CKD) is a significant global public health issue.
- Serum creatinine and estimated glomerular filtration rate (GFR) are key indicators of renal function.
- Existing GFR estimation equations, like CKD-EPI, face challenges due to interfering factors.
Purpose of the Study:
- To review fundamental concepts in renal function assessment.
- To discuss current controversies in serum creatinine measurement and GFR estimation.
- To provide updated recommendations for estimating GFR in clinical practice.
Main Methods:
- Review of current scientific literature and clinical guidelines.
- Analysis of factors influencing serum creatinine and GFR estimations.
- Consensus development by Brazilian Societies of Nephrology and Clinical Pathology and Laboratory Medicine.
Main Results:
- Highlights the importance of accurate GFR estimation for timely CKD management.
- Discusses the impact of removing race correction from GFR equations, improving accuracy.
- Identifies key areas of controversy and provides expert consensus.
Conclusions:
- Accurate renal function assessment is crucial for effective CKD patient care.
- Updated GFR estimation methods, free from race bias, enhance diagnostic and therapeutic timelines.
- This consensus provides a vital resource for clinicians managing kidney disease.
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