Different Sensitivities of Various Thromboplastins to Two Blood Collection Systems for Monitoring Oral Anticoagulant Therapy

• References

• 1 Van den Besselaar AMHP, Meeuwisse-Braun J, Witteveen E, van Meegen E. Effect of evacuated blood collection tubes on thromboplastin calibration. Thromb Haemost 1998; 79: 1062-3.
• 2 Duncan EM, Casey CR, Duncan BM, Lloyd JV. Effect of concentration of trisodium citrate anticoagulant on calculation of the international normalised ratio and the international sensitivity index of thromboplastin. Thromb Haemost 1994; 72: 84-8.
• 3 Chantarangkul V, Tripodi A, Clerici M, Negri B, Mannucci PM. Assessment of the influence of citrate concentration on the international normalized ratio (INR) determined with twelve reagent-instrument combinations. Thromb Haemost 1998; 80: 258-62.
• 4 Tripodi A, Chantarangkul V, Mannucci PM. Successful calibration of a reagent from human placenta against rTF/95, the WHO international reference preparation for thromboplastin, human recombinant, plain. Thromb Haemost 1998; 80: 348-9.
• 5 DuP Heyns A, van den Berg DJ, Kleynhans PHT, Du Toit PW. Unsuitability of evacuated tubes for monitoring heparin therapy by activated partial thromboplastin time. J Clin Pathol 1981; 34: 63-8.