Home » In early stages of myocardial ischemia the most sensitive indicator is the measurement of the activity of Enzymology MCQs In early stages of myocardial ischemia the most sensitive indicator is the measurement of the activity of January 22, 2022 9 Views Q. In early stages of myocardial ischemia the most sensitive indicator is the measurement of the activity of A. CPK B. SGPT C. SGOT D. LDH Answer: CPK