A 24-year-old man undergoes analysis of coronary blood flow as part of a research study. An intravenous infusion of norepinephrine (NE) is administered, followed by measurement of coronary blood flow over time. Which of the following is the most likely explanation for this patient’s increase in coronary blood flow following the NE infusion?
Adenosine
Angiotensin II
Epinephrine
Histamine
Thromboxane
