Yes, there are many requirements and stipulations. Some are: you must be at least 17 years old. Taking certain medications or drugs and recent illnesses such as a cold or flu would prevent you from giving blood. You would also be excluded from donating blood if you had an elevated temperature or recent tattoo. There are more.
If they are not exact as possible, the person receiving the blood or tissue or organ will reject it as foreign (doesn't belong).
Yes, it is possible to give O Positive blood to O Negative patients, but it is not likely to happen. Blood Bankers are trained to "match" blood to the person receiving the blood and these two types, while compatible, are not a good "match". The presence of the Rh factor in O Positive blood is likely to cause an immune response when given to a patient that does not have the Rh factor as in Rh Negative blood. The opposite is acceptable. It is perfectly OK to give Rh Negative blood to and Rh Positive person since they will not be getting something they do not already posses.
It has to be the right blood type and size of the person.
Of course, the person dies if the blood transfused into him is incompatible with his system.
Provided the other bloodgroups match (e.g. rhesus antigen) then yes, of course.
Their are many things that are involved in donating bone marrow. Some things that are involved are money, blood and many more. The odds of a match are less than 25 %.
Blood in the Water match happened in 1956.
Receiving the wrong type of blood can lead to an immune system response that can cause serious complications like hemolytic reactions, kidney failure, or shock. In severe cases, it can be life-threatening. Treating the complications typically involves supportive care and possibly additional medical interventions. It is crucial for healthcare providers to ensure that blood types match before transfusions to prevent such issues.
I assume you are meaning in a transfusion. The ideal blood should be a perfect match. A positive should get A positive. In an emergency an A positive can receive any blood that has no B genotype. O+/-, A+/-,but NO B or AB.
No, a person having o-negative blood cannot receive blood from a person having o-positive blood because it will cause coagulation of blood
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Because if the antibodies in the blood don't match they will destroy each other.