Table 3. Boundaries for Quartiles of Quantitative Tests of Liver Function.
| Best Function | 25th Percentile | 50th Percentile | 75th Percentile | Worst Function | |
|---|---|---|---|---|---|
| Tests of Metabolism | |||||
| Caffeine kelim (h−1) | 0.28 | 0.09 | 0.06 | 0.04 | 0.01 |
| Antipyrine kelim (h−1) | 0.09 | 0.04 | 0.03 | 0.03 | 0.01 |
| Antipyrine Cl (ml/min) | 79 | 39 | 29 | 21 | 12 |
| MEGX15min (ng/ml) | 70 | 25 | 16 | 8 | 0 |
| MEGX30min (ng/ml) | 98 | 30 | 20 | 13 | 1 |
| MBT | 308 | 84 | 65 | 45 | 6 |
| Tests of Total Hepatic Blood Flow | |||||
| Cholate kelim (min−1) | 0.27 | 0.11 | 0.09 | 0.08 | 0.02 |
| Cholate Cliv (ml/min) | 903 | 459 | 367 | 305 | 155 |
| GEC (mg/kg·min) | 10.1 | 5.6 | 4.7 | 4.0 | 2.1 |
| Tests of Portal Circulation | |||||
| Cholate Cloral (ml/min) | 3036 | 1463 | 1113 | 771 | 255 |
| Cholate Shunt (%) | 10 | 27 | 36 | 48 | 91 |
| Tests of Hepatic Parenchyma | |||||
| Perfused Hepatic Mass | 114 | 105 | 100 | 94 | 70 |
| Liver Volume (ml) | 2690 | 1867 | 1593 | 1343 | 769 |
Abbreviations: Cl, clearance; oral, orally administered; iv, intravenously administered; k, rate constant of elimination; MEGX, monoethylglycine xylidide; GEC, galactose elimination capacity.