UKMLA PLAB AMC USMLE Prometric MCQ

 Question:  USMLE step 1 Mcq 8
55 year old overweight man is told by his doctor to lose weight. He decides to undertake a rigorous exercise program. On his first day out, he has jogged for 15 minutes when he experiences the sudden onset of chest pain. Fortunately, the chest pain is relieved by rest. His doctor performs an EKG and tells him that he has myocardial ischemia. What is the most correct definition of ischemia?

a) narrowing of a lumen secondary to vasospasm
b) infarction secondary to increased activity
c) hypoxia secondary to a decrease blood supply
d) irreversible necrosis
e) myocardial infarction