Which of the following are contraindications for the use of pressure support in neonates receiving nasal IMV?
1. Large airway leaks
2. Ineffectiveness of triggering
3. Increased risk of volutrauma
4. Hypocapnia from excessive triggering
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 2 and 4 only
ANS: A
Pressure support is typically not provided to assist spontaneous breaths during nasal IMV be-cause of large airway leaks and ineffective triggering.
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