Concentration measured	Urine collection method	Normal value	Microalbuminuria	Albuminuria or clinical proteinuria
Total protein	24-hour excretion (varies with method)	< 300 mg per 24 hours	—	> 300 mg per 24 hours
	Spot urine dipstick	< 30 mg per dL	—	> 30 mg per dL
	Spot urine protein-to-creatinine ratio (varies with method)	< 200 mg of protein to 1 g of creatinine	—	> 200 mg of protein to 1 g of creatinine
Albumin	24-hour urinary excretion	< 30 mg per 24 hours	30 to 300 mg per 24 hours	> 300 mg per 24 hours
	Spot urine albumin-specific dipstick	< 3 mg per dL	> 3 mg per dL	—
	Spot urine albumin-to- creatinine ratio (varies by sex*)	Men: < 17 mg of albumin to 1 g of creatinine	Men: 17 to 250 mg of albumin to 1 g of creatinine	Men: > 250 mg of albumin to 1 g of creatinine
		Women: < 25 mg of albumin to 1 g of creatinine	Women: 25 to 355 mg of albumin to 1 g of creatinine	Women: > 355 mg of albumin to 1 g of creatinine