A healthy Filipino has 16-18 glasses of blood. Donating 250-450 cc (approximately one glass) will not cause any weakness or ill effects.
Giving blood will not take up too much of your time- the whole process just takes 30 minutes.
Be a lifesaver and donate to the National Red Cross!
Blood is a mixture of red cells, white cells, plasma, platelets and more. Plateletpheresis is a special blood donation process that follows you to give just one part of your blood - platelets - the cells that help stop bleeding.
There's an excess supply of platelets in the blood and much of them can be given away with no ill effect.
Until recently, the only way to collect enough platelets for a single transfusion was to take the units of blood given by five to 10 donors, separate the platelets from the other blood cells using a centrifuge and combine the platelets.