Prothrombin time, activated partial thromboplastin time and dilute Russell's Viper Venom times are not shorter in patients with the prothrombin G20210A mutation, and dilute Russell's Viper Venom time may be longer.

Abstract excerpt

INTRODUCTION: Prothrombin G20210A (PT20210) carriers have increased prothrombin levels and increased risk for venous thrombosis. We hypothesized PT20210 carriers would have decreased PT, aPTT, and dRVVT clotting times. METHODS: We reviewed 1186 thrombotic risk panels that included PT, aPTT, dRVVT, and PT20210 genotype with potential confounding variables, excluding samples consistent with anticoagulant therapy or...

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