Caring for Patients with CRF: Rewards and Benefits

Table 1

Stages of chronic kidney disease: KDIGO classification of CKD (1).

Stage	Description	GFR (mL/min/1.73 m^2)
(1)	Kidney damage with normal or ↑ GFR	≥90
(2)	Kidney damage with mild ↓ GFR	60–89
(3)	Moderate ↓ GFR	30–59
(4)	Severe ↓ GFR	15–29
(5)	Kidney failure	<15 (or dialysis)

Chronic kidney disease is defined as either kidney damage or GFR <60 mL/min/1.73 m² for ≥3 months. Kidney damage is defined as pathologic abnormalities or markers of damage, including abnormalities in blood or urine tests or imaging studies.
KDIGO: The Kidney Disease Improving Global Outcomes; CKD: Chronic kidney disease; GFR: Glomerular filtration rate.