Which of the following indexes is a useful predictor of ventilatory muscle fatigue?
A. pressure-time product
B. pressure-time index
C. Pesophageal/Ppleural
D. f /Vt
ANS: B
A. Incorrect response: See explanation B.
B Correct response: Multiplying the PTP/MIP by the inspiratory time fraction (Ti/Ttotal), that is,
The PTI is a useful predictor of ventilatory muscle fatigue.
C. Incorrect response: See explanation B.
D. Incorrect response: See explanation B
Health Professions
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