The Study
The apparent buffer value of human blood for CO2 as a function of temperature.
This study looked at how blood holds onto CO2 when it gets warmer, like in a test tube. It found that warmer blood might hold CO2 a little differently, but it didn't test this in real bodies or prove that temperature changes cause any health effects.
Analysis score
Maximum 44 for a cross-sectional study.
Where the score came from
This study looked at how warm blood gets at different temperatures and how well it can soak up carbon dioxide.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 520 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1This small change might make it harder for your muscles to stay balanced when they're working hard and getting hot.
- 2When blood got warmer (from 26°C to 42°C), its ability to buffer CO2 went up by 7% if it had no oxygen, and by at least 10% if it had normal oxygen levels.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Archives internationales de physiologie et de biochimie
Year
1982
Authors
M. Castaing, L. Sibille, J. Pocidalo
Related Content
Claims (4)
The human body keeps the pH of its blood and fluids between 7.35 and 7.45 using chemical buffers and regulatory processes.
When blood temperature rises from 26°C to 42°C at oxygen saturation levels of 30% or higher, the blood's ability to bind and hold carbon dioxide increases by at least 10%. This change depends on the level of oxygen in the blood.
In tissues that are very active and warm, absorbing carbon dioxide lowers pH stability and disrupts acid-base balance.
When deoxygenated human blood is heated from 26°C to 42°C, its ability to buffer carbon dioxide increases by 7% compared to its buffering capacity at 26°C, but this change is not statistically significant.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.