Ventilator cycling, waveform analysis

[Tipsy McStagger]

Patient triggered inspirations are generally easy to spot. Any tips for identifying when the ventilator is cycling an inspiration (just by evaluating the waveform - absent of knowing the mode set on the machine)? The only thing I can tell thus far is when there is an abrupt drop of flow at a level greater than what would otherwise be physiologically normal.

Any other ideas?

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[SurfingDoctor]

Have you try lower the trigger sensitivity? I'll just stand by the bedside and turn the dial to see what happens.

 

[Tipsy McStagger]

Have you try lower the trigger sensitivity? I'll just stand by the bedside and turn the dial to see what happens.

That's what I do in practice, I'm just working on really getting into the waveform analysis.

I did some more digging and someone pointed out to me that if it's machine cycled the I-time should be the same, so looking at the inspiration time should make it clear if it's machine or patient cycled.