00a95e53_The_Winning_Weaning_Parameters__3
[0] Pressure Time Index [1] .05-1.2 [2] <.15* [3] 
Pressure Time Index (PTI) is a measure of strength and endurance combined into one value. It combines the strength measurement of esophageal pressure and the maximum inspiratory pressure with the endurance value of respiratory time fraction.
The Winning Weaning Parameters
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