Essay Analysis

Write a one (or more) page narrative explaining why this scenario occurred: A young burn patient on SIMV is receiving a tidal volume of 1.0L, rate of 10 breaths/min, FIO2 40%, and 0 PEEP. Spontaneous respirations are 15 (800 mL). The pH is 7.40, PCO2 42, and PaO2 is 90 mmHg. Considering the VE of the machine and spontaneous, what is the total VE? Is the PaCO2 accurate and explain why or why not? HINT: the topic and scenario hold key answers to what I am looking for-good luck!