ABSTRACT
AIM: To analyse the correlation between coagulation tests (PT APTT fibrinogen, D-dimer) and albumin with AT-II in DHF as well to find the formula to calculate AT-III with the parameter of coagulation tests and albumin. METHODS: A descriptive-correlative cross sectional study was conducted to 49 patients with DHF consisted of DHF I(17), DHF (19), DHF III (6) and DHF IV (7). The diagnosis of DHF is based on WHO criteria 1997. The laboratory examinations were coagulation tests (PT, APT, fibrinogen and D-dimer), antithrombin III and albumin, performed when the fever subside and the platelets reached the lowest count(4(th) - 6(th) day). RESULTS: A significant correlation was found between PT and AT-III (r= -0.631; p=0.000), between D-dimer and AT-III (r= -0.337; p=0.021) and between albumin and AT-III (r= 0.291; p-0.045). In multiple linier regression analysis(backward), AT-III can be calculated with the formula, accuracy 68.3%. CONCLUSIONS: PT and D-dimer were correlated negatively with AT-III, however albumin was correlated positively with AT-III. PT, D-dimer and AT-III were correlated with the grading severity of the DHF. In this study, AT-III can be calculated with the formula, accuracy 68.3%.