Linked Life Data

6807942

Source:http://linkedlifedata.com/resource/pubmed/id/6807942

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1982-9-10
pubmed:abstractText
We used direct invasive techniques to measure the effects of hyperventilation on the pulmonary blood flow (Q) and on recirculation time of helium and of carbon dioxide in humans. The subjects hyperventilated with a tidal volume of 1.5 liters (BTPS) and a frequency of 20 or 30 breaths/min. There was no significant change in Q from control at either level of hyperventilation. Helium first appeared in the pulmonary artery within 12 s from the onset of hyperventilation and increased by approximately 0.7% of its equilibrium arterial value per second at both levels of hyperventilation. In contrast, the PVCO2 remained at base-line level until 43 s from the onset of hyperventilation. We conclude that hyperventilation at 30 or 45 l/min with constant tidal volume does not significantly affect the value of Q and that the amount of recirculation of the two gases does not result in underestimation of Q when this variable is measured by indirect respiratory rebreathing techniques.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0161-7567
pubmed:author
pubmed:issnType
Print
pubmed:volume
52
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1161-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Effects of hyperventilation on pulmonary blood flow and recirculation time of humans.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.