[Verified Answer]: You are called to treat a 40-year-old…

You are called to treat a 40-year-old complaining of chest pain and the 12 lead indicates an extensive interior wall MMI. The patient denies any shortness of breath, the pulse oximeter is 96%, and the patient forms you have a smoking history of two packs a day. You have administered high concentration oxygen, and the patient indicates that the chest pain has increased. Which of the following is most likely a cause of the increase in pain?