Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1988-3-15
pubmed:abstractText
The usefulness of an ultrasonically nebulized distilled water (UNDW) challenge as a screening procedure was tested in an on-going epidemiologic study of asthma and bronchial reactivity. Sixty-six individuals underwent a methacholine challenge, an UNDW challenge, and were administered a standardized respiratory disease questionnaire. To perform the UNDW challenge, subjects inhaled increasing volumes of nebulized distilled water while breathing tidally. Thirty-eight asthmatics, two former asthmatics, 14 normal, and 12 allergic subjects, were included. Sixty-six percent of the asthmatics dropped 20% from their baseline FEV1 during the UNDW challenge. Only one allergic or normal subject had a similar drop. The Pearson's correlation coefficient between methacholine and UNDW challenges was 0.60. If positive, an UNDW seems to be highly specific in supporting a diagnosis of asthma, while methacholine challenges are more useful in verifying the presence of non-specific bronchial reactivity.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0003-4738
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
129-33
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Incorporation and analysis of ultrasonically nebulized distilled water challenges in an epidemiologic study of asthma and bronchial reactivity.
pubmed:affiliation
Allergic Disease Center, Creighton University, Omaha, NE 68178.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.