Kidney
Browse all Kidney biomarkers, reference ranges, and learn what your results mean.
3 biomarkers
Kidney
BUN (Blood Urea Nitrogen)
Complete guide to BUN testing — normal ranges, kidney function markers, and when to get tested.
7–20 mg/dL
KidneyCreatinine
Complete guide to creatinine blood test — normal ranges by sex, what high and low levels mean, and when to get tested.
0.7–1.3 mg/dL
KidneyeGFR (Estimated Glomerular Filtration Rate)
Complete guide to eGFR testing — normal ranges, kidney function stages, and when to get tested.
90–999 mL/min/1.73m²