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A patient with O negative blood is considered the universal donor. This phenotype is associated with just one genotype; both alleles must be "O" and both alleles must be negative.
red blood cells
An 'O' negative patient can receive blood from any blood type. However, 'O' negative is considered the universal donor for red blood cells because it lacks A, B, and Rh antigens, making it safe for almost everyone to receive.
Type O
The blood type that is theoretically considered the universal donor is type O. Type O blood does not have any antigens, therefore it is compatible with any blood type.
O NegativeIs widely considered the universal blood type. It is very important because it potentially be transfused to any patient regardless of their blood type. Especially in emergency situations, when there isn't enough time to determine a patients blood type.
O negative is the universal donor.
Universal recipient
The universal blood donor type is O negative and it is considered a universal donor due to it's not having any A or B antigens. It is better because that blood will be more useful to health care staff as they can give it to anyone without having to worry about the threat of transfusion reaction.
The heart must come from a person with the same blood type as the patient, unless it is blood type O negative. A blood type O negative heart is a universal donor and is suitable for any patient regardless of blood type.
O negative blood type is considered the most valuable to have in hospital blood banks because it is the universal donor, meaning it can be given to patients with any blood type. This is especially important in emergency situations when there may not be time to determine a patient's blood type before transfusing.
O+ :is a universal donor