Table 1.
Proposed mGFR protocols according to the volume status and the anticipated level of eGFR [49].
| Non-Edematous Patients | Plasma Iohexol mGFR Protocol | |||
|---|---|---|---|---|
| Preferred Protocol | Equivalent Alternative Protocol | |||
| Initial Sample | Final Sample | Initial Sample | Final Sample | |
| eGFR > 60 mL/min/1.73 m2 | 2 h | 4 h | 2 h | 5 h |
| eGFR 30–59 mL/min/1.73 m2 | 3 h | 7 h | 4 h 3 h 4 h |
7 h 10 h 10 h |
| eGFR < 30 mL/min/1.73 m2 | 4 h | 10 h | 5 h | 10 h |
| Patients with significant edema | Urinary inulin clearance | |||
eGFR, estimated glomerular filtration rate; mGFR, measured glomerular filtration rate.