<prompt> Which of the following pathway does aPTT measureIntrinsic pathwayExtrinsic pathwayBoth intrinsic and extrinsicComplement pathway  <response>: activated paial thromboplastin time The paial thromboplastin time PTT or activated paial thromboplastin time aPTT orAPTT is a blood test that characterizes coagulation of the blood. A historical name for this measure is the kaolin-cephalin clotting time KCCT, reflecting kaolin and cephalin as materials historically used in the test. Ref Robbins 9e pg 450 