| ‣ |
|---|


Measurement should be take 1 cm between the hepatic vein and supra-hepatic IVC



| IVC diameter < 2.1 cm | Size change on compression > 50% | RA Pressure | Interpretation |
|---|---|---|---|
| ✔️ | ✔️ | 3 | Normal |
| ✔️/❌ | ❌/✔️ | 8 | |
| ❌ | ❌ | 15 | ‣ / Venous congestion / ‣ |
Cannot be used for patients on positive pressure ventilation