Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
ROX score to predict high-flow nasal cannula failure
| Time Point, h | Likely Failure Value |
|---|---|
| 2 | 2.85 |
| 6 | 3.47 |
| 12 | 3.85 |
ROX score is calculated as the ratio of oxygen saturation/fraction of inspired oxygen over respiratory rate. A patient with oxygen saturation of 90% on fraction of inspired oxygen of 0.70 with a respiratory rate of 24 would have the value (90/0.7)/24 = 5.36.
