Guided sputum sample collection and culture contamination rates in the diagnosis of pulmonary TB

  • Maciel E
  • Prado T
  • Peres R
  • et al.
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Abstract

A comparative study to evaluate contamination in cultures of morning sputum samples, comparing those collected at home under currently recommended conditions and those collected under supervision after patient orientation and education. The home and supervised collection groups produced 43 and 76 sputum samples, respectively. The contamination rate was nearly 3-times higher among samples collected at home than among those collected under supervision (37% vs. 13%, p < 0.05; OR = 0.25). The simple educational and hygiene measures described can decrease the contamination rate among sputum samples collected for diagnostic culture.Realizou-se um estudo comparativo para avaliar a contaminação em culturas de amostras matinais de escarro coletadas em domicílio sob condições recomendadas atualmente e amostras coletadas sob supervisão após orientação e educação dos pacientes. Os grupos de coleta domiciliar e supervisionada produziram 43 e 76 amostras, respectivamente. A taxa de contaminação foi aproximadamente 3 vezes maior nas amostras coletadas em domicílio do que naquelas coletadas sob supervisão (37% vs.13%; p < 0,05; OR = 0,25). As simples medidas educacionais e de higiene descritas podem reduzir a taxa de contaminação de amostras de escarro coletadas para culturas diagnósticas.

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APA

Maciel, E. L. N., Prado, T. N. do, Peres, R. L., Palaci, M., Johnson, J. L., & Dietze, R. (2009). Guided sputum sample collection and culture contamination rates in the diagnosis of pulmonary TB. Jornal Brasileiro de Pneumologia, 35(5), 460–463. https://doi.org/10.1590/s1806-37132009000500012

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