Cardiac markers are measured from a blood sample taken from individuals suspected of experiencing a myocardial infarction. Cardiac cells die during a myocardial infarction, resulting in their cell membranes becoming leaky. Proteins and enzymes from the cytoplasm of the damaged cardiac cells will exit the cells and be found in the blood. Some of the proteins found in the blood include: Troponin T or Tropinin I these are the subunits of the troponin molecule Creatine kinase (CK-MB) the isozyme responsible for facilitating the transfer of high-energy phosphates For more information about cardiac enzyme tests, you can use the free web page WedMD Below are the normal concentrations for cardiac proteins in the plasma for a person with a healthy heart Troponin l less than 0.35 μg/L TroprinT less than 0.2 ㎍/L Creatine kinase MB less than 0-3 μg/L The results of Mio's cardiac enzyme test are Troponin : 0.2 g/L Tropnin T. 0 g/L Creatine kinase MB 2 μg/L After comparing Mio's cardiac marker concentrations with the normal levels found in individuals with healthy hearts, which of the following diagnoses and rationales is most likely? A) Mio has experienced a myocardial infarction, Her plasma troponin I concentration is elevated B) Mio has normal plasma concentrations of creatine kinase troponin I and T The results do not support the diagnosis of a myocardial infarction C) Her plasma creatine kinase concentration is elevated D) Her plasina troponin T concentration is elevated Submit My Answers Give Up