A 23-year-old male complained of chest pain after he was stabbed in the right chest with a knife. You applied an occlusive dressing and continued your treatment. His initial vital signs were P 92, R 18, BP 128/82, and SpO2 was 93% on room air. During transport, he complains of difficulty breathing, and his vital signs are P 114, R 22, BP 104/88, and SpO2 is 91% on oxygen 12 L/minute by non-rebreather mask. You should: