The stable jet flow from the ARABELLA System causes which of the following?
a. A decrease in the patient's work of breathing
b. A higher continuous positive airway pres-sure level for less flow through the system
c. More patient flow to switch from expira-tion to inspiration
d. More patient expiratory flow to cause a switch to expiration
ANS: D
A more stable jet flow seems to require a more substantial patient expiratory flow to cause the device to switch into expiration. The additional flow that is required for the ARABELLA sug-gests that a patient must work harder to breathe when this system is used.
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