| Finding | Mild (3 to 5%) | Moderate (6 to 9%) | Severe (≥10%) |
| Pulse | Full, normal rate | Rapid | Rapid and weak |
| Systolic pressure | Normal | Normal to low | Very low |
| Respirations | Normal | Deep, rate may be increased | Deep, rapid rate |
| Oral tissues | Tacky or slightly dry | Dry | Parched |
| Infant fontanelle (soft spot in skull) | Normal | Sunken | Markedly sunken |
| Eyes | Normal | Sunken | Markedly sunken |
| Tears | Present | Decreased | Absent |
| Skin | Normal | Cool | Cool, mottled, blue-tinged hands/feet |
| Urine output | Mildly reduced | Markedly reduced | Absent |
| Systemic signs | Increased thirst | Listlessness, irritability | Grunting, lethargy, coma |
