Kratak sadr`aj: Brzina sedimentacije eritrocita (ESR) osta je jedan od naj~e{}e kori{}enih laboratorijskih testova. Klini~ku primenu i korisnost ovaj test ima u pra}enju inflamatornih bolesti, naro~ito reumatoidnog artritisa, temporalnog arteritisa i reumatske polimijalgije. Referentni metod za merenje ESR predlo`en od strane Me|unarodnog komiteta za standardizaciju u hematologiju koristi punu krv sa antikoagulansom EDTA za izvo|enje testa pomo}u metode koju je 1921. opisao Westergren. Trenutno zanima nje za metodologiju fokusirano je na razvoj automatizovanih za tvorenih sistema koji omogu}avaju odre|ivanje brzine sedimentacije uz odabrane radne metode, koje koriste jedan uzorak za vi{e hematolo{kih testova i unapre|uju biohazardne aspekte postupka testiranja. Usled toga, standardizacija postaje neophodna. Rezultati ESR moraju biti po uzdani uprkos pove}anom broju razli~itih metoda i varijabli za testiranje. Danas su dostupni kontrolni materijali i {eme za osiguranje spolja{njeg kvaliteta i treba ih koristiti. Dakle, inovativne tehnike mogu dalje opravdati korisnost ESR u klini~koj praksi, ali pored toga moraju garantovati sledivost rezultata u pore|enju sa referentnom metodom kako bi se obezbedila uporedivost rezultata izme|u vi{e klini~kih laboratorija.Klju~ne re~i: brzina sedimentacije eritrocita, referentne i odabrane procedure, kontrola kvaliteta, {eme za osiguranje spolja{njeg kvaliteta
The »old« ESR testIn 1897, the Polish pathologist Biernacki first announced that »the rate at which red corpuscles separated could help identify a patient's disease and that the increased sedimentation rate of blood from ill individuals was due to the presence of fibrinogen« (1). Later, in 1918 the Swedish pathologist and haematologist Robert (Robin) Sanno Fåhraeus furthered Biernacki's work, initially using the erythrocyte sedimentation rate (ESR) as a pregnancy test. Along with the first descriptions by Fåhraeus, Alf Vilhelm Albertsson Westergren, a Swedish internist, developed the test method that is named after him (2-3).Since the 19th century, the erythrocyte sedimen tation rate has become one of the most common Summary: The erythrocyte sedimentation rate (ESR) remains one of the most widely used laboratory tests. Its clinical usefulness and interpretation are in the monitoring of inflammatory diseases, in particular rheumatoid arthritis, temporal arteritis and polymyalgia rheumatica. At present, the reference method for measuring the ESR proposed by the International Committee for Standardization in Haematology (ICSH) utilizes EDTA-anticoagulated-undiluted blood to perform the test using the method described by Westergren in 1921. Current interest in the methodology focuses on the development of an automated closed system that allows the determination of the sedimentation rate with selected working methods, using a single sample for more than one haematological test, improving the bio-hazardous aspects of the testing procedures. As a consequence, standardization becomes necessary. ESR results should be reliable, desp...