Isolation of tubercle bacilli from sputum samples of patients in the field studies by the cetylpyridinium chloride-sodium chloride & sodium hydroxide methods

Selvakumar, N and Vanajakumar, - and Gopi, P G and Venkataraman, K V and Datta, M and Paramasivan, C N and Prabhakar, R (1995) Isolation of tubercle bacilli from sputum samples of patients in the field studies by the cetylpyridinium chloride-sodium chloride & sodium hydroxide methods. Indian Journal of Medical Research, 102 (Oct). pp. 149-151. ISSN 0971-5916

Preview

PDF 199517.pdf - Published Version Download (17kB)

Abstract

A total of 125 sputum specimens, collected in the field, were homogenised, aliquoted in sterile universal containers and randomly allocated to the cetylpyridinium chloride - sodium chloride (CPCNaCl) method and sodium hydroxide ( NaOH) method for culture of tubercle bacilli. After storage for 8 days at ambient temperature in the field laboratory at Thiruvallur, the aliquots were transported to the main laboratory at Madras where they were processed for culture by the respective methods. The yield of positive cultures in the CPC-NaCl (31/125) method was only marginally better than that in the NaOH method (27/125) (95% Cl being-3.4 to 9.8%), while the contamination of cultures was significantly less in the CPC-NaCl method ( 3/125) than in the NaOH method (12/125) (95% Cl being 2.2 to 12.2%). As the CPC-NaCl method has advantages over the NaOH method in reducing contamination, in augmenting the yield of positive cultures and also in its simplicity, it can be applied in field studies.

Item Type:	Article
Uncontrolled Keywords:	Cetylpyridinium chloride-sodium chloride method-field study, Mycobacterium tuberculosis, NaOH method-storage of sputum
Subjects:	Tuberculosis > Laboratory Research > Bacteriological
Divisions:	Basic Science Research > Bacteriology
Depositing User:	Dr. Rathinasabapati R
Date Deposited:	26 Sep 2013 11:02
Last Modified:	14 Mar 2016 05:30
URI:	http://eprints.nirt.res.in/id/eprint/403

Actions (login required)

View Item