| Fluid | Density (HU) |
| Simple fluid | 0 – 10 |
| Bile | -80 – 20 |
| Urine | 0 – 20 |
| Contrast-opacified urine | 80 – 200 |
| Unenhanced unclotted blood | 30 – 45 |
| Clotted blood | 58 – 94 |
| Serum | 0 – 20 |
| Contrast-enhanced blood | 180 or higher |
Reference:
Robinson, J. D., et al. (2016). “Imaging of Blunt Abdominal Solid Organ Trauma.” Semin Roentgenol 51(3): 215-229.