Quality indicators in a mycobacteriology laboratory supporting clinical trials for pulmonary tuberculosis

International Journal of Mycobacteriology
N SelvakumarVanaja Kumar

Abstract

Documentation of structured quality indicators for mycobacteriology laboratories supporting exclusively controlled clinical trials in pulmonary tuberculosis (PTB) is lacking. To document laboratory indicators for a solid (Lowenstein-Jensen medium) culture system in a mycobacteriology laboratory for a period of 4years (2007-2010). The sputum samples, collected from PTB suspects/patients enrolled in clinical trials, were subjected to fluorescence microscopy, culture and drug sensitivity testing (DST). Data was retrospectively collected from TB laboratory registers and computed using pre-formulated Microsoft Office Excel. Laboratory indicators were calculated and analyzed. The number of samples processed in a calendar year varied from 6261 to 10,710. Of the samples processed in a calendar year, specimen contamination (4.8-6.9%), culture positives (78.4-85.1%) among smear positives, smear positives (71.8-79.0%) among culture positive samples, smear negatives among culture negative samples (95.2-96.7%), and average time to report DST results (76-97days) varied as shown in parentheses. Values of quality indicators in mycobacteriology laboratories supporting exclusively clinical trials of PTB have to be defined and used for meaningful...Continue Reading

References

Mar 29, 2002·Infectious Disease Clinics of North America·David E GriffithRichard J Wallace
Apr 29, 2008·Emerging Infectious Diseases·Sonya S ShinPeter Cegielski
Sep 1, 2012·International Journal of Mycobacteriology·N SelvakumarVanaja Kumar

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Citations

Mar 2, 2010·BMC Infectious Diseases·Heidi AlbertRichard O'Brien
Nov 17, 2016·International Journal of Mycobacteriology·Subramanyam BalajiNagamiah Selvakumar

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