Parameter | FF = GFR ÷ RPF |
---|---|
GFR | Glomerular filtration rate (mL/min) |
RPF | Renal plasma flow (mL/min) |
Parameter | (UX ÷ UCr) ÷ (PX ÷ PCr) |
---|---|
UX | Urine X |
UCr | Urine creatinine |
PX | Serum X |
PCr | Serum creatinine |
Parameter | (UK ÷ UOsmolality) ÷ (PK ÷ POsmolality) |
---|---|
UX | Urine potassium (mEq/L) |
UOsmolality | Urine osmolality |
PX | Serum potassium (mEq/L) |
POsmolality | Serum osmolality |
Parameter | (140 – Age) × W ÷ (72 × Cr) × 0.85 (if female) |
---|---|
Age | Age (year) |
W | Weight (kg) |
Cr | Serum creatinine (mg/dL) |
Parameter | 186 × Cr-1.154 × Age-0.203 × 1.212 (if black) × 0.742 (if female) |
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Age | Age (year) |
Cr | Serum creatinine (mg/dL) |