dea 1. 1 positive is the blood type of a universal recipient.
dea 1. 1 positive is the blood type of a universal recipient.
what is the blood type of a universal recipient?
dea 1. 1 positive
in transfusions of packed red blood cells, individuals with type o rh d negative blood are often called universal donors. those with type ab rh d positive blood are called universal recipients. however, these terms are only generally true with respect to possible reactions of the recipient's anti-a and anti-b antibodies to transfused red blood cells, and also possible sensitization to rh d antigens. one exception is individuals with hh antigen system (also known as the bombay phenotype) who can only receive blood safely from other hh donors, because they form antibodies against the h antigen present on all red blood cells.
blood type
an important example of oligosaccharide cell recognition is the role of glycolipids in determining blood types. the various blood types are distinguished by the glycan modification present on the surface of blood cells. these can be visualized using mass spectrometry. the oligosaccharides found on the a, b, and h antigen occur on the non-reducing ends of the oligosaccharide. the h antigen (which indicates an o blood type) serves as a precursor for the a and b antigen. therefore, a person with a blood type will have the a antigen and h antigen present on the glycolipids of the red blood cell plasma membrane. a person with b blood type will have the b and h antigen present. a person with ab blood type will have a, b, and h antigens present. and finally, a person with o blood type will only have the h antigen present. this means all blood types have the h antigen, which explains why the o blood type is known as the "universal donor".
oligosaccharide