Review Question - QID 109664

A 14-year-old boy is brought to the emergency department by his mom after she found him complaining of headaches, nausea, lightheadedness, and muscle pain. He has had type I diabetes for 3 years with very well managed blood sugars, and he is otherwise healthy. He recently returned from a boy scout skiing trip where he drank from a mountain stream, ate unusual foods, and lived in a lodge with a wood-fired fireplace and cooking stove. On physical exam he has a diffuse redness of his skin. Which of the following changes to this patient's pulmonary system would cause oxygen to exhibit similar transport dynamics as the most likely cause of this patient's symptoms?