Chapter 15: Question 1
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15.1 A 28-week gestation female infant, birthweight 800 g, was intubated at birth for resuscitation and given endotracheal surfactant. She is now 2 hours old and is being ventilated using the assist/control (SIPPV) mode with volume guarantee. The back-up rate is set at 35 breaths/min, the inspiratory time is 0.35 s, the volume is set at 3.2 mL (4 mL/kg) and the maximum peak inspiratory pressure is set at 25 cmH2O. The current peak inspiratory pressure is 16 cmH2O, the positive end-expiratory pressure (PEEP) is 5 cmH2O and the baby is breathing at a rate of 55 breath/min. If the infant has a spontaneous pneumothorax, which one of the following is most likely to occur?
