In what order should blood tubes be filled when drawing for multiple tubes? Order of draw?

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Dayana

Chemistry

22 November, 14:12

In what order should blood tubes be filled when drawing for multiple tubes? Order of draw?

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Isai Howard · Answer 1

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.