[Is the angled-tube method useful for measuring sedimentation of blood corpuscles after Westergren? (author's transl)].
Results obtained with the classical Westergen method for measuring erythrocyte sedimentation rate was compared with a method in which the tubes were angled at 60 degree. Blood was obtained from 31 healthy controls and 30 hospitalised patients. Blood from the controls gave similar results with both methods. On the other hand, in patients with a raised ESR by Westergren, the two methods agreed in only 10% of cases. In most instances the angled-tube method gave values below those by Westergren, although elevated under clinical aspects. In some Instances the angled-tube method gave such low readings in clearly pathological samples that the ESR was falsely interpreted as normal. It is concluded that the angled-tube method is not valid for ESR measurement after Westergren, because it measures something different than the classical Westergren method.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001799:Blood Sedimentation; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D012016:Reference Values
Ist die Schrägrohrmethode zur Bestimmung der Blutkörperchensenkungsgeschwindigkeit nach Westergren brauchbar?