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Table 1 Frequencies of lupus anticoagulant positivity with different assay combinations in 80 orally anticoagulated patients with lupus anticoagulants

From: Combining Taipan snake venom time/Ecarin time screening with the mixing studies of conventional assays increases detection rates of lupus anticoagulants in orally anticoagulated patients

  Assay combinations
  DRVVT, DAPTT & TSVT DRVVT & DAPTT DRVVT only DAPTT only TSVT/ET only TSVT/ET & DRVVT TSVT/ET & DAPTT
Number positive for LA (%) 33 (41.3) 6 (7.5) 12 (15.0) 4 (5.0) 16 (20.0) 5 (6.2) 4 (5.0)
  1. LA, lupus anticoagulant; DRVVT, dilute Russell's viper venom time; DAPTT, dilute activated partial thromboplastin time; TSVT, Taipan snake venom time; ET, Ecarin time