At which point in the pressure-time curve of a spontaneous breath should the transdiaphragmatic pressure be greatest?
A) Mid-inspiration
B) Mid-expiration
C) End of exhalation
D) Beginning of inspiration

Question

Quizplus · Accepted Answer

The transdiaphragmatic pressure is the difference between the gastric and esophageal pressures,as measured during the respiratory cycle.The greatest distance between these two pressures during the respiratory cycle is at the middle of inspiration,when the esophageal pressure is at its lowest point.At mid-expiration the gastric and esophageal pressure difference is at its smallest point.See Figure 10-25.

At Which Point in the Pressure-Time Curve of a Spontaneous