Definitions of AKI, CKD, AKD

Acute Kidney Injury (AKI):

 • Increase in SCr by 2 50% within 7 days, OR

 • Increase in SCr by 2 0.3 mg/dl (2 26.5 gmol/l) within 48 hours, OR

 • Oliguria

Chronic Kidney Disease (CKD):

 • GFR < 60 ml/min per 1.73 m2 for > 3 months

 • Kidney Damage > 3 months

Acute Kidney Diseases and Disorders (AKD):

 • AKI, OR

 • GFR < 60 ml/min per 1.73 m2 for < 3 months, OR

 • Decrease in GFR by ≥ 35% or increase in SCr by > 50% for < 3 months

 • Kidney Damage < 3 months

No Kidney Disease (NKD):

 • GFR ≥ 60 ml/min per 1.73 m2

 • Stable SCr without AKI/AKD/CKD

 • No structural damage



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