The Negative Pressure Forced Expiration (NPFE) manoeuvre is a pressure-driven perturbation which inflates a subject’s lung to Total Lung Capacity (TLC) before rapidly exposing them to a negative pressure to draw the air out


The document provides extensive information regarding:

  • an overview of the NPFE manoeuver
  • the importance of the manoeuver
  • troubleshooting pinch valve error, reservoir presure fluctuation, lung fluid/blocks


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