Abstract
The blood sedimentation test was used as a routine laboratory procedure in 2063 cases. By modified Westergren technic, a rate of more than 20 mm. in 1 hr. was considered abnormal. The rate was rapid in 24.1% of cases. There were 34.5% in which diagnostic help was obtained from routine blood counts, urinalysis, and serological tests for syphilis. Only 4% showed elevated rates without evidence of disease. A normal sedimentation rate did not exclude the presence of disease. Of 186 cases showing anemia, 37% showed a normal sedimentation rate. Only 47% of cases with leuko-cytosis showed an increased sedimentation rate, and 30% with normal white counts showed an increased rate. More misleading rapid rates were noted in [female][female] than in [male][male]. The test was evidently of value as a routine laboratory procedure in diagnosis.

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