RETRANSFUSION OF SHED WHOLE BLOOD

Abstract

Blood is a tissue which circulates in what is virtually a closed system of blood vessels . It consists of solid elements ( red cells, white cells and platelets ) . These solid elements are suspended in a liquid medium ( plasma). This tissue have many functions such as :- 1- Act as a transportation mechanism , it transport the food material to tissues and metabolic waste products from tissues to the lungs, kidneys and large intestine to be excreted . 2- It enter the regu1ation of acid/base balance and water balance of the body. 3- It regulates the body temperature by distribution of body heat . t,. Blood transfusion services play a critical role in modern surgical operations .Just a few years ago, the general public and many experienced physicians, believed some what naively that the •· compatible blood transfusions were entirely safe and certainly far less risky than almost any surgical procedure. When transfusion is indicated , the physician must decide whether patient needs whole blood or blood components and how much needed to be given. Whole blood is presented in many forms, each of which is indicated in certain clinical condition.