Screening, identifying, and treating chronic kidney disease: why, who, when, how, and what?

BMC Nephrology

Table 3 KDIGO albuminuria classification with associated measurements of urine proteins

Terms	Albuminuria Category	Albumin (mg/ 24 h urine)	uACR (mg/g)	uPCR (mg/g)	Dipstick Proteinuria
Normal to mildly increased	A1	< 30	< 30	< 150	Negative to trace
Moderately increased	A2	30–300	30–300	150–650	Trace to 1+
Severely increased	A3	> 300	> 300	> 650	+ 2 or greater
Nephrotic range	A3 Nephrotic range	> 2000	> 2000	> 3500	+ 2 or greater

KDIGO urine albumin to creatinine ratio (uACR) classifications with corresponding 24-hour urine albumin concentrations, uACR measurements, and terms. Corresponding urine protein to creatinine ratio (uPCR) and dipstick protein results using approximate conversions are also shown in the last two columns. Adapted from Pierre C et al. [35]

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