In a Particular Family One Parent Has Type a Blood
What's the rarest blood blazon?
In general, the rarest claret type is AB negative and the virtually common is O positive. Hither's a breakdown of the nigh rare and common blood types past ethnicity, according to the American Red Cross.
O positive:
- African-American: 47%
- Asian: 39%
- Caucasian: 37%
- Latino-American: 53%
O negative:
- African-American: four%
- Asian: 1%
- Caucasian: eight%
- Latino-American: 4%
A positive:
- African-American: 24%
- Asian: 27%
- Caucasian: 33%
- Latino-American: 29%
A negative:
- African-American: 2%
- Asian: 0.5%
- Caucasian: 7%
- Latino-American: 2%
B positive:
- African-American: xviii%
- Asian: 25%
- Caucasian: ix%
- Latino-American: 9%
B negative:
- African-American: 1%
- Asian: 0.4%
- Caucasian: 2%
- Latino-American: 1%
AB positive:
- African-American: 4%
- Asian: 7%
- Caucasian: 3%
- Latino-American: 2%
AB negative:
- African-American: 0.3%
- Asian: 0.1%
- Caucasian: i%
- Latino-American: 0.2%
How is blood type determined?
A person'due south blood type is based on whether or not they take certain molecules or proteins — chosen antigens — on the surface of their crimson blood cells, according to the National Institutes of Health. Two of the master antigens used for claret typing are known as "A antigen" and "B antigen." People with type A blood only have A antigens on their ruddy blood cells and those with blazon B blood have only B antigens. Individuals with type AB blood have both; people with type O claret have neither.
Another poly peptide, the "Rh cistron" — also known as the "Rhesus" system — is also present or absent on red blood cells. A person's blood type is designated as "positive" if they have the Rh protein on their red blood cells, and "negative" if they don't have this protein.
Is claret type genetic?
Yes, a person's claret blazon is genetic, inherited from his or her parents, co-ordinate to the Red Cantankerous.
Claret type and transfusions
Blood typing is particularly important for blood transfusions, because certain antigens on blood cells can trigger a person's allowed system to attack the donated blood.
People who are Rh-negative can only receive Rh-negative blood, but people who are Rh- positive can receive either Rh-positive or Rh-negative blood, the Blood-red Cantankerous says.
What'southward more, blazon A blood tin can be used for transfusions for patients with type A or type AB claret; type B claret tin be used for patients with blazon B or type AB blood; and type AB blood tin exist used for patients with type AB blood. Type O blood tin can be used for patients with blazon A, type B, blazon AB and blazon O blood.
What blood type is the "universal donor"?
People with type O blood are chosen "universal donors" considering this type can be used for patients with whatsoever blood type.
Type O blood is ofttimes in brusk supply in hospitals, due to need for this universal donor type, according to the Crimson Cross. In particular, blazon O-negative blood is in high demand because it's the 1 virtually often used for emergencies, when there may non be fourth dimension to determine a patient'due south blood type.
What are "rare" claret types?
Although ABO and Rh groups are the nearly important blood groups for transfusions, there are hundreds of other antigens that take been plant on the surface of people's ruby-red blood cells. A person's blood type is rare if their blood does non take an antigen that most people have, or if their blood does take an antigen that most people lack, according to the Cleveland Clinic. Specifically, rare blood types are those that are found in 1 in 1,000 people or fewer.
Ane of the rarest blood types in the earth is known as "Rh-null;" fewer than 50 people in the world have been found to have this blood type, earning it the name "golden blood," the Cleveland Clinic says.
Can claret types change?
A person's blood type does not unremarkably modify, meaning information technology stays the same throughout life. Only in some rare cases, blood type has been known to change, including in cases of bone marrow transplants and in people who adult certain types of cancers or infections, according to the Cleveland Clinic.
Blood type and pregnancy
Blood type can exist an issue in pregnancy if the female parent is Rh negative and the fetus is Rh positive. (The fetus tin can inherit the Rh gene from either the mother or the male parent.) That'south because, in this situation, the mother's immune system tin react to the fetus' "positive" blood. For this reason, significant women accept their blood tested to make up one's mind blood type. Those with Rh-negative blood can be treated with a drug called Rh immunoglobulin to preclude a damaging immune reaction if their fetus has a positive blood blazon, according to the Cleveland Dispensary.
How to find out your blood type
If you don't know your blood type you can ask your wellness intendance provider if they accept a record of information technology. If they don't, you lot may be able to request blood typing the next time you lot get your claret drawn, co-ordinate to CNN. You can also find out your blood blazon if you lot donate blood, according to the Cleveland Clinic. At that place are also calm blood tests that tin tell you your blood type.
Boosted resources
- Larn more about claret types and donation, from the American Carmine Cantankerous.
- Go more details on claret type and wellness, from the Cleveland Clinic.
- Read more than most rare blood types, from the U.K. National Health Service.
This commodity is for advisory purposes only, and is not meant to offering medical advice. This article was updated on Sept. ten, 2021 by Rachael Rettner.
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Source: https://www.livescience.com/36559-common-blood-type-donation.html
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