Which of the following is affected by platelet count-
Bleeding time
Prothrombin time
Patial thromboplastin time
Thrombin time
Bleeding time is affected by platelet count.Platelets form critical role in haemostasis by forming the primary plug that initially seals vascular defects and by providing a surface that binds and concentrates activated coagulation factors. Prothrombin time assesses extrinsic and common coagulation pathway. PTT assesses the intrinsic and common clotting pathways. Thrombin time is a screening test for fibrinogen deficiency Reference ;1 Robbins and Cotran Pathologic basis of disease.South Asia Edition-9; volume 1.page no.117,656 2.Harsh Mohan textbook of pathology 7th edition.Pg no.307 308
Haematology