Blood is classified as a connective tissue and consists of two main components. The bone marrow is the spongy material in the center of the bones that makes all types of blood cells. Acidbase balance overview the ph is a measurement of the acidity or alkalinity of the blood. National asthma education and prevention program expert panel report 3 guidelines for the diagnosis and management of asthma summary report 2007. Blood component preparation components of whole blood are centrifuged. Isbt 128 labelling standard for blood components data identifiers and data structures 20081009 2 isbt 128 technology standard much more than a new label layout provides standard information and layout for blood component labels defines data structure for information appearing on labels defines technical details for the bar code. Although often collected as whole blood and separated into major components prior to transfusion, automated collections have become common practice whereby the components that are needed for transfusion are the. Whole blood consists of rbcs, wbcs, platelets and plasma with anticoagulant 1 unit increases hgb 1 gdl and hct 3% when is it used.
From the onset, the activities were inspired by the following guiding principles. The collection, testing and use of blood and blood components in. Clinical guidelines for the provision of cmv seronegative blood components executive summary. Blood and blood components safety, quality, training and. It constitutes more than half of the blood s volume and consists mostly of water that contains dissolved salts electrolytes and proteins. The whole blood which is a mixture of cells, colloids and crystalloids can be separated into different blood components namely packed red blood cell prbc concentrate, platelet concentrate, fresh frozen plasma and cryoprecipitate. Patients who are actively bleeding and lost 25% of blood volume exchange transfusion. This document is intended to assist hospital transfusion. Administration of blood components to adults, children and neonates individual trusts incorporate this guidance into their local and regional policies, protocols and practice. Sep 12, 2014 the unique component donation number and the blood group on the component pack must be the same as those on the laboratoryproduced label attached to the blood component bcsh, 2009. Overview shan yuan updated 292011 concept of component therapy.
Pdf overview of blood components and their preparation. Components of blood and their functions leadthecompetition. When you are wounded, blood comes out of that wound quickly. Formed elements of the blood 45% of blood volume erythrocytes or red blood cells rbcs leukocytes or white blood cells wbcs thrombocytes or platelets erythrocytes function carry oxygen to all body cells structure biconcave disk shape lacks nucleus anucleate contains hemoglobin 12 18 grams per 100 milliliters of blood. Blood plasma is the liquid portion of blood in which the formed elements are embedded. Blood measures guide consultative draft for comment and use foreword the principal aim of the blood measures project is to focus on the patient end of the blood supply chain and collect reliable data as to where the fresh blood components are being used and for what indications. Guide to the preparation, use and quality assurance of blood components recommendation no. Guide to the preparation, use and quality assurance of blood components author. Blood plasma the composition of blood blood is a mixture, made up of four components. Oct 15, 2014 4 components of blood and their functions 1. Unlike the heart and the blood vessels, which are organs, blood is a complex tissue. The acceptability of a blood component for release from canadian blood services is determined by canadian blood.
Guide to the preparation, use and quality assurance of blood. Red blood cell hemolysis during blood bank storage. Pdf hemolysis of red blood cells rbcs during blood bank storage is the most obvious manifestation of rbc storage system failure. Visual assessment guide canadian blood services t05 021 january 2009. An euwide overview of the market of blood, blood components and. It is the major component of blood, representing 55% of total blood volume, with about 4050 ml kg weight. The nurse should also check the expiry date and time and carry out a visual check of the component to ensure there is no leakage, discolouration or clumping. This layer contains leukocytes leuko white, the white blood cells that act in various ways to protect the body, and platelets, cell fragments that help stop bleeding. Many types of anemia exist, such as irondeficiency. Recommendations based on serial laboratory values component content volume expected change in labs indication trigger goals of transfusion warm fresh whole blood wfwb same components in same percentages as blood loss 400500 ml 1 unit wfwb replaces all components of blood loss in similar ratio. Overview of blood and blood components health encyclopedia. Administration of blood components transfusion guidelines.
Guidelines on management of blood and blood components as. Please help improve this article by adding citations to reliable sources. This essential fluid carries out the critical functions of transporting oxygen and nutrients to our cells and getting rid of carbon dioxide, ammonia, and other waste products. Red blood cells, plasma, white blood cells and platelets are four components of whole blood. Most common storage methods for packed red blood cells, plasma, cryoprecipitate and platelets 3. Blood, a living tissue circulating throughout the human body, is comprised of red blood cells, white blood cells, platelets and plasma. It is composed of blood cells and an aqueous fluid known as plasma. Plasma the plasma is the light yellow liquid portion of the blood and is about 90% water. Two major functions of the blood include transporting substances to and from our cells and providing immunity and protection against infectious agents such as bacteria and viruses. It circulates throughout our body delivering oxygen and nutrients to various cells.
Blood and blood component therapy should only be given when the benefit to the patient outweighs the risk where there is evidence of little or no benefit, blood and blood component therapy should not be considered a default treatment option. Key recommendations keep it simple try to avoid complexity and concentrate on the key steps. Starting with the four main components, their functions and interesting facts. Students will learn what our blood is made of with this worksheet. Blood component therapy jeffrey jhang, md assistant professor of clinical pathology college of physicians and surgeons new york, ny learning objectives 1. Blood is the lifemaintaining fluid that circulates through the entire body. The acceptability of a blood component for release from canadian blood services is determined by canadian blood services protocols and procedures. When something goes wrong in your blood, it can affect your health and quality of life. It is the liquid component of blood and transports blood cells throughout the body along with nutrients, waste products, antibodies, clotting proteins, chemical messengers such as hormones, and proteins that help maintain the bodys fluid balance. We would like to show you a description here but the site wont allow us.
In 1985 a test to detect the hiv aids antibody was added to the screening of blood to increase the safety of blood and blood component transfusion. The acceptability of a blood component for transfusion will be determined by local hospital policy and procedures under the direction of the transfusion services medical director ref csaz90204 4. Pre transfusion blood sampling prescription authorisation requesting collection administration of blood components to adults, children and neonates individual trusts incorporate this guidance into their local and regional policies, protocols and practice. This article needs additional citations for verification. With regard to blood transfusion, cooperation among member states started back in the 1950s. Circular of information for the use of human blood and. Some of the areas that you will be assessed on include plasma and red blood cells. They will then take a closer look at each component while color coding and researching correct responses to questions. Transfusion of any blood component exposes a patient to certain risks. There are other organs and systems in our bodies that help regulate blood cells.
Blood plasma is a clear, sticky liquid composed mainly of water. Blood components a constituent separated from the whole blood, by differential centrifugation of one donor unit or by apheresis. Micronutrients for health isted below are all the vitamins and nutritionally essential minerals and their functions, some common dietary sources, and the intake recommendations supported by the national academy of medicine. Plasma is the liquid component of blood, in which the red blood cells, white blood cells, and platelets are suspended. Its composition and function the blood in our circulatory system is a watery based fluid and consists of two basic components. Guide to the preparation, use and quality assurance of.
Know how components are prepared by whole blood separation and apheresis. They help the blood clotting process or coagulation by gathering at the site of an injury. Because education law does not permit lpns to make patient assessments interpret or evaluate clinical data, the practice of blood component administration by lpns requires rn supervision. This quizworksheet combo will help check your understanding of components and function of blood. Blood is a fluid connective tissue that consists of plasma, blood cells and platelets. It is therefore critical to transfuse blood components only when the specific component is indicate, and. The following document details the purpose, methodology and clinical consensus statements that have been developed by the blood service on behalf of the nba regarding the clinical indications for cmv seronegative. Mar 29, 2015 blood products whole blood one unit of donor blood collected in a suitable anticoagulant preservative solution and which contains blood cells and plasma.
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