The specific oxygen uptake rate (sour), also known as the oxygen consumption or respiration rate, is defined as the milligram of oxygen consumed per gram of volatile suspended solids (vss) per hour perform the appropriate solids analysis on the undiluted sample. Breath-by-breath analysis of oxygen uptake using the datex ultima oxygen consumption of respiratory gas flow and oxygen concentration [3, 4], or by analysis of mixed expired gas [5-8].
Where q is the cardiac output of the heart, c a o 2 is the arterial oxygen content, and c v o 2 is the venous oxygen content (c a o 2 – c v o 2 ) is also known as the arteriovenous oxygen difference.
The oxygen uptake rate is one of the fundamental physiological characteristics of culture growth and has been used for optimising the fermentation process , usually the specific oxygen uptake rate, q o 2, is calculated from our which is determined experimentally.
In oxygen concentration (fig 1) the paramagnetic oxygen sensor of the ultima has a rise time of approximately 420 ms during periods of rapid change in oxygen concentration, early in inspiration and expiration, the gradient generated by the sensor would not be as steep as the true gradient two methods were used to correct for this error. Thus, the addition of oxygen therapy results in very little increased uptake, although the percentage of normal uptake per breath is increased, indicating that the breathing frequency might be reduced in time. Analysis of oxygen delivery and uptake relationships in the krogh tissue model paul t schumacker and richard w samsel pulmonary and critical care medicine, the university of chicago, chicago, illinois 60637 schumacker,~aul t, andrichard w samselanalysis.
For the analysis of proton leak kinetics, curves were estimated using the log function of excel (microsoft, 2007) and rates of oxygen consumption at a membrane potential of 150 mv were compared for high and low rfi steers using analysis of variance. Baba r, nagashima m, goto m, nagano y, yokota m, tauchi n, nishibata k (1996) oxygen uptake efficiency slope: a new index of cardiorespiratory functional reserve derived from the relation between oxygen uptake and minute ventilation during incremental exercise. Oxygen uptake (v ˙ o 2) is the amount of oxygen extracted from inspired air in a given period of time and used for metabolic activity, measured in ml o 2 /min or in ml/kg/min (referred to body weight) , ,.
Analysis of oxygen delivery and uptake relationships in the krogh tissue model j appl physiol 67(3): 1234-1244, 1989-normally, tissue o2 uptake (vo,) is set by metabolic activity rather than o2 delivery (&o, = blood flow x arterial o2 content) however, when &o, is reduced below a critical level, to2 becomes limited by o2 supply.
Purpose: this study characterised oxygen uptake efficiency (oue) in children with mild-to-moderate cystic fibrosis (cf) specifically, it investigated (1) the utility of oue parameters as. British journal of anaesthesia 1995 74: 155-158 breath-by-breath analysis of oxygen uptake using the datex ultima j p m barnard and j w sleigh. An in silico analysis of oxygen uptake of a mild copd patient during rest and exercise using a portable oxygen concentrator ira katz,1,2 marine pichelin,1 spyridon montesantos,1 min-yeong kang,3 bernard sapoval,3,4 kaixian zhu,5 charles-philippe thevenin,5 robert mccoy,6 andrew r martin,7 georges caillibotte1 1medical r&d, air liquide santé international, centre de recherche paris.