Features of ESR Tubes

1. Pre-Filled with Sodium Citrate: The black ESR tube contains sodium citrate pre-filled in the proper ratio, ensuring anticoagulation for accurate sedimentation measurement.
2. Color-Coded for Convenience: The black color ensures quick and easy identification in the lab.
3. Wide Compatibility: Designed to work seamlessly with automated or manual ESR analyzers, like the Westergren method.
4. Vacuum-Sealed Design: These tubes maintain sterility and prevent contamination during blood collection.