| Feature | TRALI | TACO |
| Body temperature | Fever may be present | Unchanged |
| Blood pressure | Hypotension may be present | Hypertension may be present |
| Respiratory symptoms | Acute dyspnea | Acute dyspnea |
| Neck veins | Unchanged | May be distended |
| Auscultation | Rales | Rales and S3 may be present |
| Chest radiograph | Diffuse bilateral infiltrates | Diffuse bilateral infiltrates |
| Ejection fraction | Normal | Decreased |
| PAOP | Most often 18 mmHg or less | Greater than 18 mmHg |
| Pulmonary edema fluid | Exudate | Transudate |
| Fluid balance | Neutral or negative | Positive |
| Response to diuretics | Generally not responsive | Significant improvement |
| White cell count | Transient leukopenia may be present | Unchanged |
| BNP or NT-pro-BNP | Within normal limits | Significantly elevated |
