What Tube for a Type and screen / crossmatch?
Pink-top (or lavender) K2EDTA tube, labeled to blood-bank rules.
- Additive
- K2EDTA
- Inversions
- 8–10 times
- Order of draw
- #5 of 6
Collection and handling
- Many blood banks require the pink tube and their own armband or labeling system.
- Label at the bedside in front of the patient; mislabeled blood-bank samples are rejected.
Exam tip
Patient identification errors are most dangerous in blood banking: a wrong-blood-in-tube can cause a fatal transfusion reaction.
Where it falls in the order of draw
- 1. Blood culture bottles (aerobic + anaerobic) (Culture media)
- 2. Light blue (3.2% sodium citrate)
- 3. Gold / red-gray (SST) or red (Clot activator (SST also has gel))
- 4. Green / light green (PST) (Lithium heparin (PST also has gel))
- 5. Lavender (or pink) (K2EDTA)
- 6. Gray (Sodium fluoride / potassium oxalate)
Full explanation in the order of draw guide.
Tube requirements differ between labs and assays. Always follow your own laboratory's collection manual.
Drill tubes and order of draw until they stick
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