{"id":156,"date":"2021-08-02T07:48:00","date_gmt":"2021-08-02T07:48:00","guid":{"rendered":"http:\/\/hostguidepost.azurewebsites.net\/?p=156"},"modified":"2021-08-02T07:48:00","modified_gmt":"2021-08-02T07:48:00","slug":"blood-donation","status":"publish","type":"post","link":"https:\/\/aztuteguidepost.azurewebsites.net\/index.php\/blood-donation\/","title":{"rendered":"Blood donation"},"content":{"rendered":"

A\u00a0blood donation<\/b>\u00a0occurs when a person voluntarily has\u00a0blood<\/a>\u00a0drawn and used for\u00a0transfusions<\/a>\u00a0and\/or made into biopharmaceutical medications by a process called\u00a0fractionation<\/a>\u00a0(separation of\u00a0whole blood<\/a>\u00a0components). Donation may be of whole blood, or of specific components directly (apheresis<\/a>).\u00a0Blood banks<\/a>\u00a0often participate in the collection process as well as the procedures that follow it.<\/p>\n

The amount of blood drawn and the methods vary. The collection can be done manually or with automated equipment that takes only specific components of the blood. Most of the components of blood used for transfusions have a short\u00a0shelf life<\/a>, and maintaining a constant supply is a persistent problem. This has led to some increased interest in\u00a0autotransfusion<\/a>, whereby a patient’s blood is salvaged during surgery for continuous reinfusion\u2014or alternatively, is “self-donated”\u00a0prior<\/i>\u00a0to when it will be needed. (Generally, the notion of “donation” does not refer to giving to one’s\u00a0self<\/i>, though in this context it has become somewhat acceptably idiomatic.)<\/p>\n

\"National<\/p>\n

Donated blood is tested by many methods, but the core tests recommended by the World Health Organization are these four:<\/p>\n