The apparent buffer value of human blood for CO₂as a function of temperature

Abstract

The influence of temperature on the acid-base status of normal human deoxygenated whole blood was studied in open systems (variable total CO2 content). (1) When the temperature was raised from 26 degrees C to 42 degrees C, the apparent buffering value of deoxygenated whole blood for CO2 increased by 7% of its value at 26 degrees C; this increase was not statistically significant. (2) Comparing the present data with those obtained previously from oxygenated whole blood in the same temperature range (Castaing & Pocidalo, 1979) indicates that arterial and venous blood have slightly different buffering capacities for CO2 in the 26 to 42 degrees C temperature range. It also suggests that, at physiological SO2 levels (SO2 greater than or equal to 30%), the apparent buffering value of venous blood for CO2 would be increased by at least 10% of its value at 26 degrees C when the temperature is raised to 42 degrees C. (3) It is concluded that pH stability would be reduced upon CO2 uptake within tissues with a high metabolism and therefore a high temperature.

The dark triad and counterproductive work behaviours: A multiple mediation analysis

“…The present study is about the investigation of perceived organisational politics and perceived responsibility which plays the role of mediators among the D.T.P.s and C.W.B. However, Stone- Romero and Rosopa (2008) argue that authors should not claim that the studied model is the only model consistent with the results when they use S.E.M. in the non-experimental study.…”

“…Boddy (2010) argues that a sound control system and public scrutiny, a standard approach in the public sector, may act as a barrier for the D.T.P.s in the organisation. Empirical studies have revealed that perceived accountability is an integral part of ethical behaviour (Steinbauer et al, 2014). D.T.P.s are more sensitive to conventional norms and behaviour.…”