<prompt> aPTT is done for assessing?Warfarin toxicityLMW heparinHeparin toxicityExtrinsic coagulation pathway defect  <response>: Ref: KD Tripathi, 7th ed. P 618-620PT Prothrombin TimeaPTT Activated Partial Thromboplastin Time Assess activity of extrinsic coagulation pathway. Used when on warfarin treatment. WePT: Warfarin for extrinsic; PT value assessed. Assess activity of intrinsic coagulation pathway. Used while on heparin treatment. HINT: Heparin for intrinsic; aPTT value assessed. 