Given the current lack of data defining the optimal method for measuring UFH, we designed this study to evaluate concordance of aPTT and anti-Xa values in a large hospital cohort and whether ...

Considering the Clinical Laboratory Improvement Amendment (CLIA) requirement of a minimum of 30-40 subjects for special coagulation tests when determining in-house normal values (27), we decided to ...

Clinically reported values were used ... of aPTT and anti-Xa activity in a group of patients with normal baseline coagulation function who were treated with UFH. These data were used to design ...