Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713


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Design and evaluation of a device for collecting exhaled breath condensate

Diseño y evaluación de un equipo para obtener aire espirado condensado

Oscar Florencio Araneda Valenzuela, Maria Paulina Salazar Encina

J Bras Pneumol.2009;35(1):69-72

Abstract PDF PT PDF EN Portuguese Text

In recent years, the analysis of exhaled breath condensate samples has been given great weight as a noninvasive methodology of studying physiology and lung diseases. The present study describes a device for measuring exhaled breath condensate that is affordable, easily constructed, portable and suitable for use in the field, as well as allowing the collection of simultaneous samples. The results obtained with this device in terms of the concentrations of pH, hydrogen peroxide and nitrite, metabolites related to inflammatory and oxidative damage, in exhaled breath condensate samples are comparable to those obtained with other devices previously described.


Keywords: Exhalation; Lung diseases; Equipment design.




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