In adult with normal hemoglobin and hematocrit blood losses more than 20% of their blood volume (or hematocrit falls below 30%) are to be replaced with blood (while in western countries replacement may be required on loss more than 25 to 30%). A few important indications of transfusion of blood are mentioned below. • Losses […]
The components of blood are frequently used for transfusion, separately in different medical conditions. Many times whole blood may not be indicated and one component is sufficient for treating the patient. Packed Cell Volume (PCV) Among the components of blood, Packed Cell Volume is the most important and commonly transfused component. These are used when
Autologous blood Transfusion Techniques: AutoIogous Blood The blood of a person himself is called as autologous blood. Usually, 3 to 4 units of patient’s own blood are taken 4 to 6 weeks before surgery but hematocrit should not be allowed to fall below 35% and hemoglobin less than 11 g%. The patient’s blood is transfused back
Stored blood is one of the commonest transfused volume replacements. Blood is stored in the cold part of refrigerator at 4°C (never in the freezer). Since blood from donors it taken long before it has to be given to a patient, it is stored in the meantime in refrigerator to preserve it from getting spoiled. It can be
Dextrans are a type of colloids and are used for intravenous transfusion. The Dextran Injection is aavailable as Dextran 70 (mol. wt. 70,000 Daltons), Dextran 150 (mol. wt. 1,50,000 Daltons) and Dextran 40 (mol. wt. 40,000 Daltons). Dextrans are polysaccharides. These solutions can be stored for 10 years. Half life of dextrans is 2 to
