From: Fluctuation of the renal function after discharge from hospital and its effects on drug dosing in elderly patients – study protocol
Group
Description
GFR (ml/min/1.73 m2)
1
Normal renal function
>80
2
Mild renal impairment
50–80
3
Moderate renal impairment
30–50
4
Severe renal impairment
<30
5
End stage renal disease (ESRD)
Requiring dialysis