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6.7: Volume Support Ventilation

Breathe Easy: RT Student Resource for Mechanical Ventilation · LibreTexts

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    Volume Support Ventilation is another spontaneous mode available on some ventilators. The principle of this mode is similar to that of pressure regulated volume control (PRVC). However, to use volume support, the patient must have an intact drive to breathe. With this mode, pressure support is provided with a target volume set. Based on phase variables, a volume support breath can be described as follows: patient triggered, volume targeted and flow cycled.

    Graph displaying "Possessions" in orange and "Flow" and "Volume" in teal, with corresponding data trends.
    Figure 6.7.1: “Pressure Support with Target Volume” by Freddy Vale, CC-BY-NC-SA

    The ventilator will adjust pressure over several breaths in order to achieve the target volume set. For example, if the tidal volume measured is below the target volume set, the ventilator will increase pressure.

    As with any spontaneous mode, back up ventilation must be set appropriately.

    Watch this video for a review on volume support ventilation principles and settings:

    One or more interactive elements has been excluded from this version of the text. You can view them online here: https://ecampusontario.pressbooks.pub/mcvresource/?p=1588#oembed-1

    Video: “Volume Support – Basics” By Mike’s RT [5:23] Transcript Available

    This page titled 6.7: Volume Support Ventilation was last modified on Fri, 16 Oct 2026 18:17:18 GMT and is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Yvonne Drasovean via source content that was edited to the style and standards of the LibreTexts platform.