None. Donating blood is just a simple procedure where a sterile needle is inserted in your arm and your blood will either be transfused into another person or be stored in a blood bag then deliver it in a hospital. This procedure has nothing to do with your vision.
Or, are you trying to say you'll get dizzy and your vision becomes blurry after blood donation? Is that it? If yes, get yourself enough rest and sleep. Drink plenty of nutritious juices and you'll be fine. If dizziness won't disappear, consult your doctor.
They do not form in a blood donation because blood clots are out of our anotomy
1) Allogeneic Blood Donation - A qualified blood donor donates blood for unknown recipient. The donation process in which a donor directly donates blood to a family member, relative or friend is called Directed Blood Donation. 2) Autologous Blood Donation - A person's blood is temporary preserved and will be transfused back at him after a surgery.
advance banking of blood by the patient (known as autologous donation)
No.
No No
Death.
I think National Cord Blood Stem Cell Bank can helps with cord blood donation
blood donation
Blood donors are typically unpaid volunteers, but they may also be paid by commercial blood donation and processing enterprises, such as independent blood banks and donor centers
Red cells are seperated from a blood donation for their use in hemophillic patients
About a pint.
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