The tube used for Erythrocyte Sedimentation Rate (ESR) testing is a lavender top tube.
According to Laboratory Alliance, the specific tube used for an ESR test is a 3 mL lavender (EDTA) top tube. This tube contains the anticoagulant EDTA, which is essential for preventing blood from clotting before the test can be performed. Proper mixing of the tube, specifically 8-10 times, is required to ensure the EDTA is fully mixed with the blood and that clotting does not occur.
Here is a summary:
| Test | Tube Color | Anticoagulant | Volume | Mixing Requirement |
|---|---|---|---|---|
| Erythrocyte Sedimentation Rate (ESR) | Lavender | EDTA | 3 mL | 8-10 times |
