Pharmacology General b5c6a605 Which of the following statements about oral anti-coagulants is FALSE A They interfere with an early step in the synthesis of clotting factors B Irrespective of the dose administered, their anticoagulant effect has a latency of onset of 1-3 days C Their dose is adjusted by repeated measurement of prothrombin time D They are contraindicated during pregnancy High-Yield Explanation Oral anticoagulants inhibit the activation of factor II, VII, IX and X. These do not affect the synthesis of these factors