The colour of the tube used for erythrocyte sedimentation charge (ESR) testing is usually black, containing sodium citrate as an anticoagulant. This particular additive maintains a ratio of 1 half citrate to 4 components blood, essential for correct outcomes. Different blood exams could make the most of otherwise coloured tubes with various anticoagulants, every suited to particular analyses.
Appropriate tube choice is crucial for dependable ESR outcomes. Utilizing an incorrect additive or ratio can alter the sedimentation course of, resulting in deceptive scientific interpretations. The standardized black-topped tube ensures consistency and comparability throughout completely different laboratories and time factors, supporting correct illness monitoring and prognosis. Traditionally, Westergren and Wintrobe strategies have been employed, with standardized strategies bettering end result accuracy and reliability over time.
