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.
The testing process takes up to two days. This is why it is the blood on the shelf ready to go that save lives. There is no substitute for blood, when a patient requires blood, there is only one source - a blood donor. You are able to donate whole blood and red cell + plasma apheresis every eight weeks. You are able to donate platelet apheresis every two weeks.