TNNT2 and chronic kidney disease: Notably, the 2 h delta in serum hs-cTnT ≥10 ng/L was associated with a PPV of 66%, a delta of hs-cTnT >20 ng/L was associated with a PPV of 86%, and a delta of hs-cTnT >30 ng/L was associated with a PPV of 88% in the CKD subpopulation.