protected specimen brush

Also found in: Acronyms.

pro·tec·ted spec·i·men brush

(PSB) (prŏ-tek'tĕd spes'i-mĕn brŭsh)
Tool used in the collection of specimen during a bronchoscopy.
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References in periodicals archive ?
Comparison of a plugged telescoping catheter with the protected specimen brush.
Diagnostic accuracy of protected specimen brush and bronchoalveolar lavage in nosocomial pneumonia: impact of previous antimicrobial treatments.
Quality assessment of protected specimen brush samples by microscopic cell count.