# F&P ROX Calculator

> Calculates ROX index for Nasal High Flow Therapy outcome prediction. (iPhone/iPad app by Fisher & Paykel Healthcare.)

- Source: https://appshunter.io/ios/app/f-and-p-rox-calculator/id1505641177 (this page in markdown: same URL + `.md`)
- Developer: [Fisher & Paykel Healthcare](https://appshunter.io/developer/634784377)
- Category: Medical
- Price: Free
- Rating: 2.30/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 12+
- Requires: iOS 11.0 · 15 MB
- Languages: American English
- Released: 2021-07-08
- Data updated: 2026-08-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/f-and-p-rox-calculator/id1505641177/reviews.md

## What is F&P ROX Calculator?

The ROX index combines respiratory rate and oxygenation to help predict outcomes of Nasal High Flow Therapy together with normal clinical judgement.

F&P ROX Calculator is a simple tool that allows you to calculate a patient's ROX index. The ROX index for a patient is calculated by dividing the SpO2 / FiO2 ration by respiratory rate, thus is easily measured and repeated at the bedside. The index can be used together with clinical judgement to assess whether mechanical ventilation may or may not be a required after initiation of NHF therapy.  The index has been validated for patients with Acute Hypoxemic Respiratory Failure due to pneumonia (a link to this study in included from within the app).
 
The ROX index should never replace normal clinical judgement.

## Key features

- ROX index calculation
- Nasal High Flow Therapy assessment
- SpO2 / FiO2 ratio division
- Respiratory rate input
- Clinical judgment support
- Study link included

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/f-and-p-rox-calculator/id1505641177/reviews.md

### 1/5 — Not working

*2024-10-10*

Can’t open app to get to calculator

### 1/5 — You can’t accept disclaimer

*2023-03-19*

You can’t accept the disclaimer and move on. There is no way to move on to the calculator

## Frequently asked questions about F&P ROX Calculator

### What is the ROX index?

The ROX index combines respiratory rate and oxygenation to help predict outcomes for Nasal High Flow Therapy. It is calculated by dividing the SpO2/FiO2 ratio by the respiratory rate.

### How is F&P ROX Calculator used?

F&P ROX Calculator is a simple tool for healthcare professionals to calculate a patient's ROX index at the bedside. This index aids in assessing whether mechanical ventilation might be required after initiating NHF therapy.

### Does F&P ROX Calculator replace clinical judgment?

No, the ROX index should never replace normal clinical judgment. It is intended to be used in conjunction with a healthcare professional's expertise.

### What kind of patients is F&P ROX Calculator validated for?

The ROX index has been validated for patients with Acute Hypoxemic Respiratory Failure due to pneumonia. A link to the relevant study is included within the app.

### What devices does F&P ROX Calculator support?

F&P ROX Calculator is available for iPhone and iPod devices.

### How often is F&P ROX Calculator updated?

The app's latest version is 1.0.5, last updated on December 20, 2022. It was initially released on August 25, 2020.

### What is the age rating for F&P ROX Calculator?

F&P ROX Calculator has an age rating of 12+.

### Does F&P ROX Calculator have ads?

No, F&P ROX Calculator is ad-free and does not contain advertisements.

## Version history (last 4 releases)

### 1.0.5 — 2022-12-20

Enhancements & minor bug fixes

### 1.0.4 — 2021-12-22

Updated and simplified app design

### 1.0.3 — 2020-08-23

Enhancements and minor bug fixes

### 1.0 — 2020-06-12

No release notes.

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## More apps by Fisher & Paykel Healthcare

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All apps by Fisher & Paykel Healthcare: https://appshunter.io/developer/634784377

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*