Rather technical question as to the order of blood samples drawn from the same patient.
1. blood-culture tube
2. coagulation tube
3. non-additive tube
4. additive tubes in following order
- SST
- sodium heparin
- PST
- EDTA
- ACDA or ACDB
- oxalate/fluoride
Ref: med.utah.edu
Other references could provide a different order, for example, the last few items. It is important to conform to the guidelines at the place of work.