Impact of in-flight use of FFP2 masks on oxygen saturation: an experimental crossover study

2021 ◽  
Author(s):  
Stefan Sammito ◽  
Geraldine P J Müller ◽  
Oliver Maria Erley ◽  
Andreas Werner
Keyword(s):  
Heart Rate ◽  
Oxygen Saturation ◽  
Crossover Study ◽  
Blood Gas Analysis ◽  
Face Mask ◽  
Gas Analysis ◽  
Crossover Design ◽  
Capillary Blood ◽  
Blood Gas

This study was able to show in a crossover design that neither at resting conditions nor during a simulated 80 min flight wearing the examined FFP2 face mask leads to changes in the SpO2, the heart rate or the parameters of the capillary blood gas analysis.

Capillary blood gas analysis in complex regional pain syndrome: a pilot study

2003 ◽  
Vol 40 (5) ◽  
pp. 569-571 ◽  
Author(s):  
ECTH Tan ◽  
MH de Keijzer ◽  
RJA Goris
Keyword(s):  
Pilot Study ◽  
Oxygen Saturation ◽  
Complex Regional Pain Syndrome ◽  
Pain Syndrome ◽  
Blood Gas Analysis ◽  
Oxygen Metabolism ◽  
Gas Analysis ◽  
Capillary Blood ◽  
Blood Gas

Background: The pathophysiology of complex regional pain syndrome type 1 (CRPS 1) is still a matter of debate. An inflammatory reaction may cause the syndrome. Increasing evidence points to a role for impairment of oxygen metabolism in the affected limb. Methods: In this pilot study (16 patients) we performed capillary blood gas analysis in extremities with acute CRPS 1, in order to assess oxygen saturation and lactate concentrations. Comparison was made with the unaffected limb for capillary blood pH, pO2, SaO2, and lactate and glucose concentrations. Results: No statistically significant differences could be found. Conclusions: Capillary blood gas analysis is not useful to detect changes in oxygen saturation and lactate concentrations in CRPS 1.

Blood gas analysis of bovine fetal capillary blood during stage II labor

2008 ◽  
Vol 69 (2) ◽  
pp. 245-251 ◽  
Author(s):  
U. Bleul ◽  
S. Schwantag ◽  
W. Kähn
Keyword(s):  
Blood Gas Analysis ◽  
Gas Analysis ◽  
Capillary Blood ◽  
Stage Ii ◽  
Blood Gas

scholarly journals Relating oxygen partial pressure, saturation and content: the haemoglobin–oxygen dissociation curve

Breathe ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 194-201 ◽  
Author(s):  
Julie-Ann Collins ◽  
Aram Rudenski ◽  
John Gibson ◽  
Luke Howard ◽  
Ronan O’Driscoll
Keyword(s):  
Oxygen Saturation ◽  
Partial Pressure ◽  
Pulse Oximetry ◽  
Blood Gas Analysis ◽  
Gas Analysis ◽  
Oxygen Dissociation Curve ◽  
Blood Gas ◽  
Dissociation Curve ◽  
Oxygen Dissociation ◽  
The Relationship

Key PointsIn clinical practice, the level of arterial oxygenation can be measured either directly by blood gas sampling to measure partial pressure (PaO2) and percentage saturation (SaO2) or indirectly by pulse oximetry (SpO2).This review addresses the strengths and weaknesses of each of these tests and gives advice on their clinical use.The haemoglobin–oxygen dissociation curve describing the relationship between oxygen partial pressure and saturation can be modelled mathematically and routinely obtained clinical data support the accuracy of a historical equation used to describe this relationship.Educational AimsTo understand how oxygen is delivered to the tissues.To understand the relationships between oxygen saturation, partial pressure, content and tissue delivery.The clinical relevance of the haemoglobin–oxygen dissociation curve will be reviewed and we will show how a mathematical model of the curve, derived in the 1960s from limited laboratory data, accurately describes the relationship between oxygen saturation and partial pressure in a large number of routinely obtained clinical samples.To understand the role of pulse oximetry in clinical practice.To understand the differences between arterial, capillary and venous blood gas samples and the role of their measurement in clinical practice.The delivery of oxygen by arterial blood to the tissues of the body has a number of critical determinants including blood oxygen concentration (content), saturation (SO2) and partial pressure, haemoglobin concentration and cardiac output, including its distribution. The haemoglobin–oxygen dissociation curve, a graphical representation of the relationship between oxygen satur­ation and oxygen partial pressure helps us to understand some of the principles underpinning this process. Historically this curve was derived from very limited data based on blood samples from small numbers of healthy subjects which were manipulated in vitro and ultimately determined by equations such as those described by Severinghaus in 1979. In a study of 3524 clinical specimens, we found that this equation estimated the SO2 in blood from patients with normal pH and SO2 >70% with remarkable accuracy and, to our knowledge, this is the first large-scale validation of this equation using clinical samples. Oxygen saturation by pulse oximetry (SpO2) is nowadays the standard clinical method for assessing arterial oxygen saturation, providing a convenient, pain-free means of continuously assessing oxygenation, provided the interpreting clinician is aware of important limitations. The use of pulse oximetry reduces the need for arterial blood gas analysis (SaO2) as many patients who are not at risk of hypercapnic respiratory failure or metabolic acidosis and have acceptable SpO2 do not necessarily require blood gas analysis. While arterial sampling remains the gold-standard method of assessing ventilation and oxygenation, in those patients in whom blood gas analysis is indicated, arterialised capillary samples also have a valuable role in patient care. The clinical role of venous blood gases however remains less well defined.

An Extremely Simple and Fast Microlitre Method for the Determination of Total Carbon Dioxide in Biological Samples

1985 ◽  
Vol 22 (5) ◽  
pp. 509-513 ◽  
Author(s):  
G J Van Stekelenburg ◽  
C Valk ◽  
M J G Van Wijngaarden-Penterman
Keyword(s):  
Carbon Dioxide ◽  
Biological Fluids ◽  
Blood Gas Analysis ◽  
Gas Analysis ◽  
Capillary Blood ◽  
Total Carbon ◽  
Blood Gas ◽  
Carbon Dioxide Content ◽  
Simple Method

For those clinical laboratories equipped with a microprocessor-controlled gas analyser, an extremely simple method is described for the determination of the total carbon dioxide content in various biological fluids. Since this method needs only 20 μL of blood plasma or is less dependent on the original total carbon dioxide content, it is especially suited for paediatric purposes. With our procedure the time necessary for one determination equals the time for one capillary blood gas analysis.

scholarly journals Comparison of oxygen saturation measured by pulse oximetry and arterial blood gas analysis in neonates

2016 ◽  
Vol 43 (6) ◽  
pp. 211
Author(s):  
Srie Yanda ◽  
Munar Lubis ◽  
Yoyoh Yusroh
Keyword(s):  
Oxygen Saturation ◽  
Pulse Oximetry ◽  
Heart Defects ◽  
Blood Gas Analysis ◽  
Gas Analysis ◽  
Blood Oxygenation ◽  
Blood Gas ◽  
Cross Sectional ◽  
Arterial Blood Gas ◽  
Arterial Blood

Background Arterial blood gas is usually beneficial to discern thenature of gas exchange disturbances, the effectiveness of com-pensation, and is required for adequate management. AlthoughPaO 2 is the standard measurement of blood oxygenation, oxygensaturation measured by pulse oximetry (SapO 2 ) is now a custom-ary noninvasive assessment of blood oxygenation in newborn in-fants.Objective To compare oxygen saturation measured by pulse oxi-metry (SapO 2 ) and arterial blood gas (SaO 2 ), its correlation withother variables, and to predict arterial partial pressure of oxygen(PaO 2 ) based on SapO 2 values.Methods A cross sectional study was conducted on all neonatesadmitted to Pediatric Intensive Care Unit (PICU) during February2001 to May 2002. Neonates were excluded if they had impairedperipheral perfusion and/or congenital heart defects. Paired t-testwas used to compare SapO 2 with SaO 2 . Correlation between twoquantitative data was performed using Pearson’s correlation. Re-gression analysis was used to predict PaO 2 based on SapO 2 val-ues.Results Thirty neonates were included in this study. The differ-ence between SaO 2 and SapO 2 was significant . There were sig-nificant positive correlations between heart rate /pulse rate andTCO 2 , HCO 3 ; respiratory rate and TCO 2 , HCO 3 , base excess (BE);core temperature and HCO 3 , BE; surface temperature and pH,TCO 2, HCO 3, BE; SapO 2 and pH, PaO 2 ; and significant negativecorrelation between SapO 2 and PaCO 2 ; the correlations were weak.The linear regression equation to predict PaO 2 based on SapO 2values was PaO 2 = -79.828 + 1.912 SapO 2 .Conclusion Pulse oximetry could not be used in place of arterialblood gas analysis available for clinical purpose

scholarly journals Capillary blood gas analysis for long term oxygen therapy assessment

2001 ◽  
Vol 1 (4) ◽  
pp. 326-326
Author(s):  
Joy Ridley ◽  
Shahid Nadeem ◽  
Mangalam Sridhar
Keyword(s):  
Oxygen Therapy ◽  
Blood Gas Analysis ◽  
Gas Analysis ◽  
Capillary Blood ◽  
Blood Gas ◽  
Therapy Assessment ◽  
Long Term Oxygen Therapy
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