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Order of draw
| Color | Order/additive |
|---|---|
| Yellow /Blood culture tubes | 1st Sterile SPS |
| Light Blue / Coagulation tests | 2nd Anticoagulant Sodium Citrate |
| Red/Gray (Gold), | 3rd Clot Activators Thixotropic gel |
| Green Top | 4th Heparin |
| Lavender top | 5th EDTA |
| Gray top | 6th Potassium Oxalate |