A Bubble CPAP Has Been Set Up on an Infant

question 20

Multiple Choice

A bubble CPAP has been set up on an infant at 12 L/minute and the water column is reading 4 cm H₂O. A chest X-ray reveals mild lung overdistention. What is the most feasible explanation for this finding?

• A) The amount of CPAP is excessive for this age group.
• B) The flow rate is very high and the CPAP measured at the nasal prongs is probably >4 cm H₂O.
• C) The cannula is probably too large for the infant and causes inadvertent CPAP.
• D) The chest X-ray finding is consistent with the amount of CPAP set at the water chamber.