A blood transfusion provides blood or blood components to a save patient life who lost blood
due to an injury, during surgery or have certain medical conditions that affect blood or its
components. Before transfusion, a nurse must check blood pressure, pulse and temperature,
make sure the donor blood type is a match for patient blood type and make sure that the supplied
blood is the product ordered by your doctor and is labeled with patient name. During
transfusion, she must recheck blood pressure and pulse after 15 minutes, and recheck patient
blood pressure and pulse at the transfusion end. But, viruses, parasites and specific bacteria
can be transmitted in donated blood through a transfusion to the recipient. This reviewed the
commonest infectious diseases to prevent spread of such diseases by blood transfusion.