In the diagnosis and assessment of CKD, the most critical laboratory tests are the concurrent evaluation of the glomerular filtration rate (GFR) and analysis for the presence of elevated albumin in the urine (albuminuria) (Inker, 2014).
In combination, these biomarkers provide a strong framework for the diagnosis and stratification of CKD.
The following sections review the following:
- Measurement or estimation of the glomerular filtration rate
- Measurement of urinary albumin, evaluated as the urine albumin/creatinine ratio
