TABLEĀ 1

Examples of invasive and noninvasive techniques for obtaining samples of respiratory secretions

TechniqueExample
InvasiveFibre-optic bronchoscopy with protected specimen brush#
Fibre-optic bronchoscopy with alveolar lavage#
Lung biopsy and tissue culture
NoninvasiveSimple culture of endotracheal aspirate (qualitative)
Quantitative culture of endotracheal aspirate#
Blind culture with protected/plugged telescopic catheter#
Blind protected specimen brush#
Blind alveolar lavage#

#: samples obtained by these methods require quantitative cultures.