A blood type is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs). These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system. Some of these antigens are also present on the surface of other types of cells of various tissues. Several of these red blood cell surface antigens can stem from one allele and collectively form a blood group system.
Blood transfusion is the process of transferring blood products into a person's circulation intravenously. Transfusions are used for various medical conditions to replace lost components of the blood. Early transfusions used whole blood, but modern medical practice commonly uses only components of the blood, such as red blood cells, plasma, platelets, and other clotting factors. White blood cells are transfused only in very rare circumstances, since granulocyte transfusion has limited applications. Whole blood has come back into use in the setting of trauma.
Whole blood (WB) is human blood from a standard blood donation. It is used in the treatment of massive bleeding, in exchange transfusion, and when people donate blood to themselves. One unit of whole blood brings up hemoglobin levels by about 10 g/L. Cross matching is typically done before the blood is given. It is given by injection into a vein.
A blood bank is a center where blood gathered as a result of blood donation is stored and preserved for later use in blood transfusion. The term "blood bank" typically refers to a department of a hospital usually within a clinical pathology laboratory where the storage of blood product occurs and where pre-transfusion and blood compatibility testing is performed. However, it sometimes refers to a collection center, and some hospitals also perform collection. Blood banking includes tasks related to blood collection, processing, testing, separation, and storage.
A blood donation occurs when a person voluntarily has blood drawn and used for transfusions and/or made into biopharmaceutical medications by a process called fractionation. Donation may be of whole blood, or of specific components directly (apheresis). Blood banks often participate in the collection process as well as the procedures that follow it.
Apheresis is a medical technology in which the blood of a person is passed through an apparatus that separates out one particular constituent and returns the remainder to the circulation. It is thus an extracorporeal therapy.
Plasmapheresis is the removal, treatment, and return or exchange of blood plasma or components thereof from and to the blood circulation. It is thus an extracorporeal therapy, a medical procedure performed outside the body.
Plateletpheresis is the process of collecting thrombocytes, more commonly called platelets, a component of blood involved in blood clotting. The term specifically refers to the method of collecting the platelets, which is performed by a device used in blood donation that separates the platelets and returns other portions of the blood to the donor. Platelet transfusion can be a life-saving procedure in preventing or treating serious complications from bleeding and hemorrhage in patients who have disorders manifesting as thrombocytopenia or platelet dysfunction. This process may also be used therapeutically to treat disorders resulting in extraordinarily high platelet counts such as essential thrombocytosis.
Canadian Blood Services is a non-profit charitable organization that is independent from the Canadian government. The Canadian Blood Services was established as Canada's blood authority in all provinces and territories except for Quebec in 1998. The federal, provincial and territorial governments created the Canadian Blood Services through a memorandum of understanding. Canadian Blood Services is funded mainly through the provincial and territorial governments.
In England, blood and other tissues are collected by NHS Blood and Transplant (NHSBT). NHSBT Blood Donation was previously known as the National Blood Service until it merged with UK Transplant in 2005 to form a NHS special health authority. Other official blood services in the United Kingdom include the Northern Ireland Blood Transfusion Service, the Scottish National Blood Transfusion Service and the Welsh Blood Service.
Australian Red Cross Lifeblood, simply known as Lifeblood, is a branch of the Australian Red Cross responsible for the collection and distribution of blood and biological products in Australia. Lifeblood employs around 3,700 employees across scientific, clinical and support services, processing over one and a half a million blood donations each year. Lifeblood is primarily funded by the Australian Government and state and territory governments.
The Irish Blood Transfusion Service (IBTS), or Seirbhís Fuilaistriúcháin na hÉireann in Irish, was established in Ireland as the Blood Transfusion Service Board (BTSB) by the Blood Transfusion Service Board (Establishment) Order, 1965. It took its current name in April 2000 by Statutory Instrument issued by the Minister for Health and Children to whom it is responsible. The Service provides blood and blood products for humans.
NHS Blood and Transplant is an executive special health authority of the United Kingdom's Department of Health and Social Care. It was established on 1 October 2005 to take over the responsibilities of two separate NHS agencies: UK Transplant, founded by Dr. Geoffrey Tovey in 1972, and the National Blood Service. Its remit is to provide a reliable, efficient supply of blood, organs and associated services to the NHS. Since NHSBT was established, the organisation has maintained or improved the quality of the services delivered to patients, stabilised the rising cost of blood, and centralised a number of corporate services.
The New Zealand Blood Service is the provider of blood services for New Zealand. The service is a Crown entity responsible to New Zealand's Parliament and is governed by a Board appointed by the Minister of Health.
Many countries have laws, regulations, or recommendations that effectively prohibit donations of blood or tissue for organ and corneal transplants from men who have sex with men (MSM), a classification irrespective of their sexual activities with same-sex partners and of whether they identify themselves as bisexual or gay. Temporary restrictions are sometimes called "deferrals", since blood donors who are found ineligible may be found eligible at a later date. However, many deferrals are indefinite meaning that donations are not accepted at any point in the future, constituting a de facto ban. Even men who have monogamous relations with their same-sex partners are found ineligible.
A transfusion transmitted infection (TTI) is a virus, parasite, or other potential pathogen that can be transmitted in donated blood through a transfusion to a recipient. The term is usually limited to known pathogens, but also sometimes includes agents such as simian foamy virus which are not known to cause disease.
The Associazione Volontari Italiani del Sangue (AVIS) is the major Italian non-profit and charitable organisation for blood donation, bringing together over a million volunteer blood donors across Italy. It is headquartered in Lombardy, Italy.
The MSM blood donor controversy in the United Kingdom refers to the former deferral policy of men who have had sex with men (MSM) in the United Kingdom who wish to donate their blood to UK blood donation services. Since June 2021, there is no deferral period in all four home nations. This followed an announcement in December 2020 that blood donation policies specific to MSM would be scrapped in favour of personalised risk assessment based on sexual behaviour.
Blood donations in India are conducted by organisations and hospitals through blood donation camps. Donors can also visit blood banks in hospitals to donate blood. Efforts by the government and advocacy groups over the years have helped bridge the gap between demand and supply. The regulatory framework for blood donation and blood bank management rests with the Central Drugs Standard Control Organisation, while technical bodies like the National Blood Transfusion Council and National AIDS Control Organisation formulate guidelines and recommendations for transfusion medicine and blood bank management. Challenges persist with regards to regulation of blood banks and transfusion practices as the sector is largely fragmented with uneven distribution of blood banks and supply of blood in parts of the country. Donors are usually provided with refreshments after the procedure, which include glucose drinks, biscuits and fruits. Some organisations offer transportation facilities, as well as certificates or badges as gratitude.
The Iranian Blood Transfusion Organization or acronymly IBTO is the highest and only decision-making authority in the field of supply and distribution of healthy blood and blood products in Iran. This organization was established in July 31, 1974.
