Der Linden et al. [209] reported that the maximum fluctuations in cTnT concentration in a patient with CRF during the 24-h investigation period were about 50 ng/L, while the fluctuations in cTnT levels for one hour were about 20 ng/L, which, by the way, is a very significant contribution to the laboratory diagnosis of MI. Here, TNNT2 is linked to myocardial infarction.