The EDTA tube (purple top) is used for CBC (Complete Blood Count) tests.
According to the reference information:
- EDTA tubes (purple top) are used for CBC.
- When a differential is required as part of a CBC, slides must be prepared within 12 hours of blood collection.
- Refrigerated EDTA blood is stable for CBC for up to 24 hours.
- Clotted or hemolyzed specimens are unacceptable.
