REW is short for Ruby Eyed White. You may hear breeders call them REW (Roo) for a nickname. Example That's a nice Roo you've got there. They are rabbits with the Albino gene and hide their true color. The Albino Gene isn't so much a color as it is a color hiding gene.
Platelets. You can donate platelets once in a seven day period and up to 24 times a year. You must wait at least 7 days after donating platelets before donating whole blood. After an automated double red cell collection, you must wait 112 days before donating again.
It takes about 1 to 1.5 hours to collect enough platelets to help bone marrow transplant, cancer, and leukemia patients. Donors with high platelet counts often are able to donate two or three units of platelets in one visit. The collection bags, tubing and needles are all sterile, and used for one donation only.