A patient receiving volume-controlled ventilation has the following data on the ventilator flow sheet: 10 pm 11 pm, Plateau pressure, (Pplat) 20 cm H2O 30 cm H2O, Peak pressure (Ppeak) 28 cm H2O 38 cm H2O, PEEP 5 cm H2O 5 cm H2O, Set VT 600 mL 600 mL, Return VT 596 mL 599 mL. Which of the following can best explain these data?
A. secretions in the airways
B. pulmonary edema
C. kinked patient circuit (tubing)
D. wheezing
