Final answer:
The lab value that is most effective in checking for consecutive myocardial infarction is troponin levels.
Step-by-step explanation:
The lab value that is most effective in checking for consecutive myocardial infarction is troponin levels. Troponin is a regulatory protein for muscle contraction and is released by damaged cardiac muscle cells. Elevated levels of troponin in the blood indicate myocardial infarction.