<prompt> A patient on aspirin can present with which of the following factors?Prolonged BTProlonged PTProlonged APTTProlonged CT  <response>: Aspirin ingestion irreversibly inhibits the synthesis of thromboxane A2 by platelets, which is necessary for platelet aggregation. Since platelet aggregation is impaired, bleeding time is increased. Bleeding time is indicative of function of platelets. Ref: Essentials of Medical Pharmacology, KD Tripathi, 5th Edition, Chapter 13, Page 170-174; Robbins Pathology 7th 653; Essential of Pharmacology by KD Tripathi 5th172. 