Blood Donations/Blood Banking
What is blood banking?
Blood banking is the process that takes place in the lab to make sure that donated blood, or blood products, are safe before they are used in blood transfusions and other medical procedures. Blood banking includes typing the blood for transfusion and testing for infectious diseases.
Facts about blood banking
According to the American Association of Blood Banks as of 2013:
About 36,000 units of blood are needed every day.
The number of blood units donated is about 13.6 million a year.
About 6.8 million volunteers are blood donors each year.
Each unit of blood is broken down into components, such as red blood cells, plasma, cryoprecipitated AHF, and platelets. One unit of whole blood, once it’s separated, may be transfused to several patients, each with different needs.
Annually, more than 21 million blood components are transfused.
Who are the blood donors?
Most blood donors are volunteers. However, sometimes, a patient may want to donate blood a couple of weeks before undergoing surgery, so that his or her blood is available in case of a blood transfusion. Donating blood for yourself is called an autologous donation. Volunteer blood donors must pass certain criteria, including the following:
Must be at least 16 years of age, or in accordance with state law
Must be in good health
Must weigh at least 110 pounds
Must pass the physical and health history exam given before donation
Some states permit people younger than 16 or 17 years to donate blood, with parental consent.
What tests are done in blood banking?
A certain set of standard tests are done in the lab once blood is donated, including, but not limited to, the following:
Typing: ABO group (blood type)
Rh typing (positive or negative antigen)
Screening for any unexpected red blood cell antibodies that may cause problems in the recipient
Screening for current or past infections, including:
Hepatitis viruses B and C
Human immunodeficiency virus (HIV)
Human T-lymphotropic viruses (HTLV) I and II
West Nile virus
Irradiation to blood cells is performed to disable any T-lymphocytes present in the donated blood. (T-lymphocytes can cause a reaction when transfused, but can also cause graft-versus-host problems with repeated exposure to foreign cells.)
Leukocyte-reduced blood has been filtered to remove the white blood cells that contain antibodies that can cause fevers in the recipient of the transfusion. (These antibodies, with repeated transfusions, may also increase a recipient’s risk of reactions to subsequent transfusions.)
What are the blood types?
According to the American Association of Blood Banks, distribution of blood types in the U.S. includes the following:
O Rh-positive – 39%
A Rh-positive – 31%
B Rh-positive – 9%
O Rh-negative – 9%
A Rh-negative – 6%
AB Rh-positive – 3%
B Rh-negative – 2%
AB Rh-negative – 1%
What are the components of blood?
While blood, or one of its components, may be transferred, each component serves many functions, including the following:
Red blood cells. These cells carry oxygen to the tissues in the body and are commonly used in the treatment of anemia.
Platelets. They help the blood to clot and are used in the treatment of leukemia and other forms of cancer.
White blood cells. These cells help to fight infection, and aid in the immune process.
Plasma. The watery, liquid part of the blood in which the red blood cells, white blood cells, and platelets are suspended. Plasma is needed to carry the many parts of the blood through the bloodstream. Plasma serves many functions, including the following:
Helps to maintain blood pressure
Provides proteins for blood clotting
Balances the levels of sodium and potassium
Cryoprecipitate AHF. The portion of the plasma that contains clotting factors that help to control bleeding.
Albumin, immune globulins, and clotting factor concentrates may also be separated and processed for transfusions.
1351Baby shower guest sign in ideas
2533Boy baby shower decorations ideas
1607Girl baby shower favors ideas
23705Intermittent Fasting – Is It Safe For Children?
23715Understanding Poop – Constipation, IBS, and Other Digestive Disorders
23735IBS, Depression, and Skin Problems in Fructose Malabsorption
23689It is Safe to Eat Raw Meat – A Guide to Choosing the Right Type
600Baby shower fruit tray ideas
1791TOP 10 Girl baby shower themes ideas for 2017
4319Baby shower afternoon tea ideas
23759Don’t Overcook Your Meat!
1909Purchase The Special Twin Baby Shower Cakes From Your Local Stores
218710 Useful Triplet baby shower ideas for you!
3923Baby shower snack ideas pinterest
4291High tea baby shower ideas – 10 ways to have a High tea baby shower party!
554Welcoming a Baby Angel in Style with the Best Baby shower souvenir ideas
2041Planning a Baby shower program ideas – detailed guide
23710The Carnivore’s Dilemma – A Diet of Just Meats and Fats?
1667Dr seuss baby shower decoration ideas
158Baby shower banner ideas
2313Cute baby girl baby shower ideas
2427Good baby shower ideas
1659Ideas for baby shower game prizes
1593Baby shower favors ideas to make yourself
198Baby shower ideas boy
3921Baby shower bonbonniere ideas
382Couples baby shower ideas
2227Twin boys baby shower ideas
1153Baby shower centerpieces idea
2011Princess themed baby shower ideas
618Ideas for a baby shower for a girl
4315Baby shower centerpieces ideas pictures – 10 methods to brighten your baby shower party
450Boy baby shower theme ideas
2575Baby shower for twins boy and girl ideas
3809Baby shower hamper gift ideas
2237Simba baby shower ideas