Double tracer gas single-breath washout: reproducibility in healthy subjects and COPD.

  title={Double tracer gas single-breath washout: reproducibility in healthy subjects and COPD.},
  author={Kim Husemann and Nina Berg and Jennifer Engel and Johannes Port and Christoph Joppek and Ziran Tao and Florian Singer and Holger Schulz and Martin Kohlh{\"a}ufl},
  journal={The European respiratory journal},
  volume={44 5},
The applicability and interpretation of inert tracer gas washout tests is hampered by the lack of feasible protocols and reproducibility data. We assessed feasibility, variability and reproducibility of a new easy to perform double tracer gas (DTG) single-breath washout (SBW) test and compared this with conventional nitrogen washouts. In 40 healthy nonsmokers and 20 patients with stable chronic obstructive pulmonary disease (COPD), we performed three N2 vital capacity SBWs, three N2 multiple… CONTINUE READING
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