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To the Editor,
We read the article "Clinical and financial impact of removing creatine kinase-MB from the routine testing menu in the emergency setting" written by Le et al [1] with interest. They concluded that removal of creatine kinase-MB (CK-MB) from the routine test menu in the emergency department (ED) reduced cost and did not negatively impact patient care [1] .
Cardiac troponins (cTn) are key elements in the evaluation with suspected acute coronary syndromes in patients presenting at the ED with chest pain and various diseases in which myocardial injury may be involved [2,3] . Cardiac troponins may also provide valuable information regarding screening, prognosis, and risk stratification and help to guide therapeutic planning and ED disposition of patients with many...