Author Question: The inspiratory time setting for an infant with RDS, airway resistance of 30 cm H2O/L/sec, and lung ... (Read 53 times)

kaid0807 · **on:** Jul 16, 2018

The inspiratory time setting for an infant with RDS, airway resistance of 30 cm H2O/L/sec, and lung compliance of 0.002 L/cm H2O should be which of the following?

a. 0.25 sec
b. 0.30 sec
c. 0.45 sec
d. 0.55 sec

Question 2

The inspiratory time setting for an infant with bronchopulmonary dysplasia (BPD), airway re-sistance of 45 cm H2O/L/sec, and lung compliance of 0.004 L/cm H2O should be which of the following?

a. 0.25 second
b. 0.45 second
c. 0.6 second
d. 0.9 second

k2629 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: B
Raw CL = 1 time constant. This is 0.06 second in this problem. One time constant multiplied by 5, or 0.30 second, should be the inspiratory time setting for this patient.

Answer to Question 2

ANS: D
Raw CL = 1 time constant. This is 0.18 sec in this problem. One time constant multiplied by 5, or 0.90 second, should be the inspiratory time setting for this patient.