VentRef

Vent & Oxygenation Reference

Free · Designed for iPad

VentRef is a focused clinical reference for clinicians managing invasive and noninvasive mechanical ventilation and oxygen therapy, grounded in core respiratory physiology and evidence-based critical care practice. This application is intended for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Calculations and reference values are derived from published peer-reviewed medical literature and textbooks cited in the Sources section of the app. Always seek the guidance of a qualified healthcare professional with any questions regarding medical conditions or clinical decisions, and do not disregard or delay seeking professional advice because of information provided by this app. About Rishi Kumar, MD, FACC ("RK.MD") I'm an adult cardiothoracic anesthesiologist and cardiovascular ICU intensivist practicing in academic medicine. I'm passionate about teaching with free, open-access medical education. Learn more on my site: https://rk.md

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Added: Calculators for Oxygen Saturation Index (OSI), Oxygen Extraction Fraction (OEF), Respiratory System Resistance, Ventilation Index (VI), Respiratory System Time Constant Added: Images for supplemental oxygen therapies Added: Lung capacity/volume terms Updated: User interface tweaks Updated: Matomo SDK to 7.8.0

Version 1.1

The developer, Rishi Kumar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data

Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

  • Size
    • 18.4 MB
  • Category
    • Medical
  • Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
  • Languages
    • English
  • Age Rating
    16+
    • 16+
    • Learn More
    • Frequent
      Medical Treatment Information

      Contains
      Unrestricted Web Access
  • Provider
    Rishi Kumar
    • Rishi Kumar has not identified itself as a trader for this app. If you are a consumer in the European Economic Area, consumer rights do not apply to agreements between you and the provider.
  • Copyright
    • © Rishi Kumar, MD
  • Developer Website
  • Privacy Policy

    • More by Rishi Kumar