Review Question - QID 215143

A 32-year-old man is brought in by helicopter to the burn intensive care unit for 40% total body surface area burns sustained after an unknown assailant ignited the patient with gasoline. The patient is yelling in exquisite pain. On exam, his temperature is 99.0°F (37.2°C), blood pressure is 108/76 mmHg, pulse is 116/min, and respirations are 16/min. Oxygen saturation on pulse oximetry is 99%. There is no injury to his head or neck, and his airway and oropharynx are free of soot. Burns have been sustained to his chest, abdomen, back, bilateral arms and bilateral legs. Burns are non-circumferential, and escharotomies are not indicated. Large bore intravenous lines are placed and fluid resuscitation is started. The team then proceeds with placing an arterial line and central venous access. After an initial unsuccessful attempt, the patient develops sudden onset shortness of breath, and the pulse oximeter now reads 92%. A chest X-ray is performed and shown in Figure A. Which of the following was the likely access attempt that resulted in these X-ray findings?