Increased sensitivity of acid-fast smears.

  title={Increased sensitivity of acid-fast smears.},
  author={T W Rickman and N. P. Moyer},
  journal={Journal of clinical microbiology},
  volume={11 6},
Evaluation of the centrifuges used in the mycobacteriology laboratory indicated a failure to develop sufficient relative centrifugal force for optimal concentration of acid-fast bacilli. Retrospective analysis of 14,509 specimens received between 1 July 1973 and 30 June 1975 and sedimented at 1,260 x g relative centrifugal force revealed a positive smear rate of 1.8% and a positive culture rate of 7.1%, with a correlation between positive paired smears and cultures of 25.2%. After increasing… CONTINUE READING

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