because their blood cells don't have a different type of chemical on them as in A and B blood. actually, only people with O negative blood are universal donors because if you have A negative, you can't take O positive blood
Universal Donors
Yes, blood type O is known as the universal donor, but consideration must also be given to whether the donor and recipient are Rhesus compatible.
AB type blood is known as the universal recipient because people with this blood can accept donations from any other blood type. O blood is considered the universal donor because this blood can be accepted by any recipient.
Blood type O- is one of the rarest blood types, and are known as universal donors because those with blood type O can donate to nearly all red blood cells. People with this type can only receive blood from other O-negative people.
Your doctor can do a blood test to tell you what blood type you have. Type O negative blood is the only type of blood that can be transfused to patients with other blood types. People with Type O blood are known as universal donors. Death can occur if someone is given blood that is not compatible with their blood type.
ABPeople with Blood type AB negative (1/2% of the population) and AB positive are potential universal plasma donors. This means plasma can be transfused to people having all Blood types. AB +People with Blood type AB positive comprise 3-1/2% of the population. People with this type of Blood are universal recipients. This means that they can be transfused with any type of Blood in emergency situations. genotypes:Go to blodbook.com to learn more.
They use the same blood type because other wise the body will reject the Donor type. It has to do with protein markers. There are universal donors who can give blood to anyone, these are people with an O blood type. There is also the Universal recipient which is someone with Ab blood type. Alot of blood banks have gone to using what is known as Plasma. It is derived from blood donations and is not subject to rejection from the recipient.
AB blood types can receive blood from any donors, also known as "Universal Recipients". Your blood, however, can only be received by other AB types. To contrast, type O blood types can give blood to anyone, but can only receive type O blood.
blood group O
We all know that a person with type O is known as a universal donor. This means that this person can donate moderate amounts of blood to people of any blood type.
O negative
Blood group O is known as the "universal donor" because it has no antigens on its red blood cells and can therefore be safely given to any blood group. Blood Group AB is known as the "universal recipient" because it has no antibodies in its plasma and so can safely receive blood from any other blood group.