hematologic consultation revealed a slightly elevated dilute russell viper venom time (drvvt) test result on 2 occasions. mr a's hematologist interpreted these results as suggestive of the presence of lupus anticoagulant and suggested anticoagulation with warfarin and, later, retesting of drvvt values,...
Other commonly used tests such as the tissue thromboplastin inhibition (TTI) test and the dilute Russell's viper venom test (DRVVT) were carried out somewhat inconsistently. The variability in performance of tests in different laboratories indicates that standardization of methodology is urgently ...
Lupus anticoagulant was weakly present (LAC (DRVVT) 1.3). Peripheral blood smear shows normochromic and normocytic anemia. Chest computer tomography scan showed subcentimeter non-calcified nodules in both upper and right upper lobes, subcarinal lymphadenopathy and minimal pericardial effusion. Abdominal...