We are not permitted to ask for specific donors in Australia. All blood is donated to the Red Cross Blood Transfusion Service and then distributed where needed. Sometimes the Red Cross have to ask certain donors to come in for certain patients because of compatibility issues.
We can also donate some of our own blood pre op and get it back if we need it during surgery.
It's the same with organ donation you can't specify who gets the cadaver organ you donate, however, it's obviously different for live donors.
Copper deficiency bone marrow failure (MDS RAEB 1), neuromyelopathy.
FISH reported normal cytogenetics but gene testing showed
Xq 8.21 mutation