Linked Life Data

7125333

Source:http://linkedlifedata.com/resource/pubmed/id/7125333

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1982-12-3
pubmed:abstractText
A pressure transducer connected to a nasal oxygen cannula detects fluctuations of about 0.1 kPa (1 cm H2O) during nose breathing because the prongs act as two one-sided pitot tubes in parallel. We describe a digital technique for converting this signal to flow and volume records without encumbering the head except during calibration. The signal could be calibrated or validated using flow measured with a face mask by intubation of the nostrils or using a respiratory inductive plethysmograph. In many subjects, the calibration gave satisfactory results for as long as 30 min, but in some, more frequent checks were needed. Changes in the relative airflow in the two nostrils may upset the results, but this can be corrected by recording and calibrating the pressure from each side separately. The meaurements can be made at high ventilation rates of when oxygen is flowing along the cannula or when gas is being sucked out for analysis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0003-0805
pubmed:author
pubmed:issnType
Print
pubmed:volume
126
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
434-8
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Measurement of human nasal ventilation using an oxygen cannula as a pitot tube.
pubmed:publicationType
Journal Article