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Knowledge Centre / Glomerular Filtration Rate (GFR)

Glomerular Filtration Rate (GFR)

Estimation and interpretation of kidney function.

Reviewed by Dr Kola Tytler MBBS CertHE MBA MRCGP (General Practitioner)
Last reviewed: 21 October 2025
NephrologyBiochemistry

Clinical Guidelines

CKS: Chronic kidney disease
National
NICE guideline [NG203]: Chronic kidney disease: assessment and management
National
BNMS Clinical Guidelines: Measurement of glomerular filtration rate (GFR) using plasma sampling (2018)
Local
KDIGO 2012 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease
Local
KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease
Local

Recent iatroX Q&As

  • What is the most accurate method for estimating GFR in adults, and how does it compare to creatinine clearance?Updated: 8/22/2025
  • How should I interpret a GFR result in the context of a patient with diabetes and hypertension?Updated: 8/22/2025
  • What are the referral criteria for a patient with a GFR below 30 mL/min in primary care?Updated: 8/22/2025
  • How often should GFR be monitored in patients with chronic kidney disease (CKD) stages 1-3?Updated: 8/22/2025
  • What lifestyle modifications should I recommend to a patient with mildly reduced GFR to prevent progression of kidney disease?Updated: 8/22/2025
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