You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Preferred biochemical markers in patients presenting with myocardial infarction September 2008 and explain in detail?
As. B: Cardiac specific Troponins Creatine kinase (CK) muscle and brain (CK-MB) mass and myoglobin measurements were the standard up to the mid-1990s, when assays for the cardiac-specific isoforms of troponin I and troponin T became available. They are now the preferred biochemical markers. They may rise to levels more than 20 times higher than the upper reference limit. Their levels may remain elevated for 7-10 days after STEMI