1. Negative pressures calculated with the Rosen and Hillard formula
Negative pressures calculated with the Rosen and Hillard formula.1,2 The triangles indicate the recommendations based on an area/volume ratio of 50% and a diameter ratio of 70%.
Negative pressures calculated with the Rosen and Hillard formula.1,2 The triangles indicate the recommendations based on an area/volume ratio of 50% and a diameter ratio of 70%. The American Association for Respiratory Care clinical practice guidelines suction pressures were converted to cm H2O and used in the calculations.
Christopher J Russian et al. Respir Care 2014;59:32-38
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