Wikipedia also says this to show how sometimes a lot of blood is needed to get just one pint of altered blood, such as they give to Witnesses:
Plateletpheresis and whole blood platelets
Not all platelet transfusions use platelets collected by automated apheresis. The platelets can also be separated from donations of whole blood collected in a traditional blood donation, but there several advantages to separating the platelets at the time of collection. The first advantage is that the whole-blood platelets, sometimes called "random" platelets, from a single donation are not numerous enough for a dose to give to an adult patient. They must be pooled from several donors to create a single transfusion, and this complicates processing and increases the risk of diseases that can be spread in transfused blood, such as human immunodeficiency virus. [citation needed]
Collecting the platelets from a single donor also simplifies human leukocyte antigen (HLA) matching, which improves the chance of a successful transfusion. Since it is time-consuming to find even a single compatible donor for HLA-matched transfusions, being able to collect a full dose from a single donor is much more practical than finding multiple compatible donors.
http://en.wikipedia.org/wiki/Blood_transfusion
This should be made known all over. Blood is treated and components are removed as a rule, at least in this country, by the Red Cross. That is one of the purposes of the blood bank, to educate the public what Jehovah's Witnesses use in terms of public resources but give nothing back. The locations of several blood vans, and the publicity associated with it, with fliers and videos and signs, will expose the doublespeak of the Witnesses. That's why AJWRB.ORG now has three forums, one to educate the public, one for doctors only, and one for anonymous Witnesses. We are not condemning them or doing anti-JW rallys in the future. It is our own publicity campaign, where you "arrest" the gaze of the bystander, which at first thinks that the sign is incorrect, but then they inquire and find out all the details in a kind way.
The old way of attacking Witnesses for it should be put to rest. The Smalley/Rusk blood policy may be dropped sooner than without it. We're willing to hit the streets. We need ACTION, no more deskwork. Enough of that has been done and is on the AJWRB.ORG site, just use the new site index and you will find it all.
Some interesting letters back and forth between "R. Jensen" and the Watchtower late last century reveal a little more of insider info that the anerage publisher doesn't know:
http://www.ajwrb.org/currentwtpolicy/watchtower/index.html
People don't understand cultspeak, or hyow cults use it.
http://www.jehovahs-witness.net/jw/friends/220448/1/Why-are-there-two-Watchtowers-published-The-real-reason
http://www.jehovahs-witness.net/jw/friends/201579/7/Generation-Teaching-Everyone-is-speechless
http://answers.yahoo.com/question/index?qid=20110608135237AAu09QN
http://www.jehovahs-witness.net/jw/friends/220997/1/Blondies-Comments-You-Will-Not-Hear-at-the-01-22-2012-WT-Study-HELP-MEN
TIME to expose the cultspeak!
But our new program will be low key, and no losers or attacks made. It will be in progressive harmony with the older articles on the site. We just want to save at least one life.
Randy