Final answer:
In chronic ischemic heart disease, serum biomarkers like creatine kinase MB and cardiac troponin may not be continuously elevated unless there is an acute cardiac event or repetitive ischemic episodes, but they can serve as indicators of such events. Other factors like depression can also exacerbate cardiovascular risks.
Step-by-step explanation:
In chronic ischemic heart disease, serum biomarkers such as creatine kinase MB and cardiac troponin may not be persistently elevated as they are usually indicators of acute cardiac injury such as myocardial infarction (MI).
However, in the presence of sustained or repeated ischemic insults, these biomarkers can indeed become elevated. Chronic ischemic heart disease often leads to hypoxia, which is a decreased supply of oxygen to the tissues that can result in cell death and severe impairment of heart function.
It is also noteworthy that conditions like depression can significantly increase the risk of cardiovascular problems, potentially compounding the challenges in managing chronic ischemic heart disease.
In chronic ischemic heart disease, the serum biomarkers are usually elevated. Common blood tests indicating an MI (myocardial infarction) include elevated levels of creatine kinase MB (CK-MB) and cardiac troponin, which are released by damaged cardiac muscle cells.