Medical dictionary. 2011.
nitrogen washout test single breath — the patient inhales a vital capacity s volume of pure oxygen and then slowly exhales. The nitrogen concentration of the exhaled gas is measured over the entire breath and a curve is generated; different parts of the curve represent nitrogen… … Medical dictionary
Nitrogen washout — (or Fowler s method) is a test for measuring dead space in the lung during a respiratory cycle, as well as some parameters related to the closure of airways. Contents 1 Procedure 2 Parameters 3 See also 4 References … Wikipedia
nitrogen washout — see under test … Medical dictionary
test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… … Medical dictionary
single breath test — single breath oxygen test nitrogen washout t., single breath … Medical dictionary
closing volume — (CV) the difference between the closing capacity and the residual volume; the volume of gas still in the lungs in excess of the residual volume when dependent small airways are assumed to have closed. Seen in the test results (such as with the… … Medical dictionary
Spirometry — TLC Total lung capacity: the volume in the lungs at maximal inflation RV Residual volume: the volume of air remaining in the lungs … Wikipedia
Hemoglobin — Hemoglobin, human, adult (heterotetramer, (αβ)2) Structure of human hemoglobin. The protein s α and β subunits are in red and blue, and the iron containing heme groups in green. Fro … Wikipedia
Perfluorocarbon — derivatives are perfluorocarbons with some functional group attached, for example perfluorooctanesulfonic acid. Perfluorocarbon derivatives can be very different from perfluorocarbons in their properties, applications and toxicity.The term… … Wikipedia
Oxygen toxicity — Classification and external resources In 1942–43 the UK Government carried out extensive testing for oxygen toxicity in divers. The chamber is pressurised with air to 3.7 … Wikipedia
