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2021
This chapter describes how desaturation during a cardiopulmonary exercise test (CPET) is uncommon. A fall of more than 4% from resting values is considered abnormal. Oxygen desaturation is usually caused by lung or pulmonary vascular disease, reflecting ventilation–perfusion inequality or impaired diffusion.
William J.M. Kinnear, James H. Hull
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This chapter describes how desaturation during a cardiopulmonary exercise test (CPET) is uncommon. A fall of more than 4% from resting values is considered abnormal. Oxygen desaturation is usually caused by lung or pulmonary vascular disease, reflecting ventilation–perfusion inequality or impaired diffusion.
William J.M. Kinnear, James H. Hull
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Best Practice & Research Clinical Anaesthesiology, 2014
Early detection and rapid treatment of tissue hypoxia are important goals. Venous oxygen saturation is an indirect index of global oxygen supply-to-demand ratio. Central venous oxygen saturation (ScvO2) measurement has become a surrogate for mixed venous oxygen saturation (SvO2). ScvO2 is measured by a catheter placed in the superior vena cava.
Christiane Hartog, Frank Bloos
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Early detection and rapid treatment of tissue hypoxia are important goals. Venous oxygen saturation is an indirect index of global oxygen supply-to-demand ratio. Central venous oxygen saturation (ScvO2) measurement has become a surrogate for mixed venous oxygen saturation (SvO2). ScvO2 is measured by a catheter placed in the superior vena cava.
Christiane Hartog, Frank Bloos
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Emergency nurse : the journal of the RCN Accident and Emergency Nursing Association
Considerable research has focused on pulse oximeters since their introduction into clinical practice and much of it has been limited to a study of patient hypothermia and movement. The main problems have been vaso- constriction and poor functioning of the light emission diodes in cold environments, as well as operational difficulties.
Dennis G. O'Connell +2 more
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Considerable research has focused on pulse oximeters since their introduction into clinical practice and much of it has been limited to a study of patient hypothermia and movement. The main problems have been vaso- constriction and poor functioning of the light emission diodes in cold environments, as well as operational difficulties.
Dennis G. O'Connell +2 more
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Femoral venous oxygen saturation is no surrogate for central venous oxygen saturation*
Critical Care Medicine, 2012The purpose of our study was to determine if central venous oxygen saturation and femoral venous oxygen saturation can be used interchangeably during surgery and in critically ill patients.Prospective observational controlled study.Nonacademic university-affiliated teaching hospital in The Netherlands.One hundred cardiac outpatients, 30 high-risk ...
van Beest, Paul A. +9 more
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1997
The fraction of incident light which is returned from a turbid sample contains information about the pigments within the sample. Analysis of the spectra of this returned light allows detailed information of the relative quantity of these pigments to be determined.
D J, Clark, T J, Essex, B, Cater
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The fraction of incident light which is returned from a turbid sample contains information about the pigments within the sample. Analysis of the spectra of this returned light allows detailed information of the relative quantity of these pigments to be determined.
D J, Clark, T J, Essex, B, Cater
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Oxygen delivery and venous oxygen saturation monitoring
Hospital Medicine, 2003Maintenance of adequate oxygen delivery is essential to ensure survival from shock, critical illness and major surgery. Impaired oxygen delivery can result in tissue hypoxia, anaerobic metabolism, lactic acid production and oxygen debt. If sustained, this sequence of events can lead to multiorgan failure and death.
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Fetal oxygen saturation during labour
BJOG: An International Journal of Obstetrics & Gynaecology, 1997Objective To derive oxygen saturation by pulse oximetry (SpO2) values at each cervical dilatation in labour in fetuses with normal neonatal outcome.Participants One hundred and forty‐five women at term in established labour with ruptured membranes and cervical dilatation at least 2 cm who had normal delivery outcome.
Chua, S. +3 more
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