Evaluation of chronic kidney disease in chronic heart failure: From biomarkers to arterial renal resistances

Table 1 Risk of chronic renal disease progression according to K/DOQI clinical practice guidelines[25]

Glomerular filtration rate categories			Microalbuminuria
			A1 normal to mildly increased < 30 mg/g	A2 moderately increased 30-299 mg/g	A3 severely increased> 300 mg/g
1	Normal or high	> 90 mL/min	Low risk	Moderately increased risk	High risk
2	Mildly decreased	60-89 mL/min
3a	Mildly to moderately decreased	45-59 mL/min	Moderately increased risk	High risk	Very high risk
3b	Moderately to severely decreased	30-44 mL/min	High risk	Very high risk	Very high risk
4	Severely decreased	15-29 mL/min	Very high risk	Very high risk	Very high risk
5	Kidney failure	< 15 or dialysis mL/min	Very high risk	Very high risk	Very high risk