<prompt> The shelf life of blood with CDPA -2 weeks3 weeks d5 weeks8 weeks  <response>: citrate-phosphate-dextrose with adenine CPDA-1 preservative was developed. The addition of adenine improved the synthesis of adenosine triphosphate ATP in the stored blood, which prolonged the storage of bloodred cells at 2-4 degC to 35 days. Ref: Medscape 