Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3 Pt 1
pubmed:dateCreated
1986-11-4
pubmed:abstractText
Eight adult subjects with asthma had isocapnic cold air challenges on 4 different days. Three consecutive tests were performed on each visit with functional recovery between tests. Subjects were asked to breathe dry cold air (-20 degrees C) for progressively increasing levels of minute ventilation (7.5, 15, 30, and 60 L/min and maximal voluntary ventilation) until a 20% fall in FEV1 had been reached or when maximal voluntary ventilation was done. FEV1 was assessed between each level. The doses of respiratory heat exchange and minute ventilation causing 10%, 15%, and 20% changes in FEV1 were interpolated from dose-response curves. The within- and between-day 95% confidence intervals based on a single determination on the loge scale varied from +/- 0.32 to 0.59 for the indices derived from respiratory heat exchange. Reproducibility of the between-day results was more satisfactory than for the corresponding within-day assessments. No significant within-day tachyphylaxis was demonstrated for these indices.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0091-6749
pubmed:author
pubmed:issnType
Print
pubmed:volume
78
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
379-87
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Within- and between-day reproducibility of isocapnic cold air challenges in subjects with asthma.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't