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Table 3 Classification of urinary albumin and protein concentration

From: Overview of the Alberta Kidney Disease Network

Classification Urine albumin:creatinine ratio
(mg/mmol)
Urine protein:creatinine ratio
(mg/mmol)
24 hour urine microalbumin
(mg/day)
24 hour urine protein
(mg/day)
Urine dipstick
Normal ≤ 2.5 men
≤ 3.5 women
< 15 ≤ 30.0 < 150.0 Negative
Microalbuminuria/Minimal proteinuria 2.6-29.9 men
3.6-29.9 women
15.0-49.9 31.0-299.9 150.0-299.9 Trace
Macroalbuminuria/Proteinuria 30.0-69.9 50.0-99.9 300.0-699.9 300.0-999.9 1+
Heavy macroalbuminuria/Heavy proteinuria 70.0-315.9 100.0-450.9 700.0-2449.9 1000.0-3499.9 2+
Nephrotic range > = 316 ≥ 451.0 ≥ 2450.0 ≥ 3500.0 3+
  1. Adapted from Lamb EJ et al [9].