Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1998-2-5
pubmed:abstractText
Adequate organ function requires adequate provision of cells with oxygen (O2). The driving force for O2-diffusion from ambient air to its site of consumption in cell mitochondria is the oxygen partial pressure (pO2) gradient along this pathway. After uptake in the lungs, O2 transport in blood is achieved (1) through binding to haemoglobin and (2) through physical dissolution in plasma. While the sum of O2 in these two transport states defines total oxygen content of blood, the delivery of O2 to different organs is determined by cardiac output and arterial O2 content, being the product of both parameters. In the case of anaemia, intravascular volume and cardiac compensatory mechanisms determine the degree of O2 content reduction allowable prior tissue hypoxia and lactacidosis occur. When intravascular volume is preserved (e.g. normovolemic dilutional anaemia), reductions in O2 content are tolerated to a much higher degree than in hypovolemic anaemia (e.g. haemorrhagic shock).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
T
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0955-3886
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
425-35
pubmed:dateRevised
2005-11-16
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
The physiology of oxygen transport.
pubmed:affiliation
Institute for Surgical Research, Ludwig Maximilians University of Munich, Germany.
pubmed:publicationType
Journal Article, Review