Calculate the inspiratory time necessary to ensure 98% of the volume is delivered to a patient with a Cs = 40 mL/cm H₂O and the Rₐᴡ = 1 cm H₂O/(L/sec).
A) 0.04 second
B) 0.16 second
C) 1.6 second
D) 4.0 seconds

Question

Quizplus · Accepted Answer

Time constant = C (L/cm H₂O)× R (cm H₂O/(L/sec)).98% of the volume will be delivered in 4 time constants.Therefore,multiply 4 times the time constant.

Calculate the Inspiratory Time Necessary to Ensure 98% of the Volume