A 9-year-old patient is intubated and in respiratory arrest. The assessment reveals perioral cyanosis, decreased BVM compliance, and absent lung sounds on the left side. Vital signs are BP 70/30, P 110, respirations assisted at 20, and SpO₂ 88%. The EtCO₂ is 58 mmHg. What should the paramedic do next?

A. Adjust the PEEP valve

B. Increase the ventilation rate

C. Remove the endotracheal tube

D. Perform needle decompression