INVITRO EVALUATION OF A COMPACT METABOLIC MEASUREMENT INSTRUMENT

被引:63
作者
WEISSMAN, C [1 ]
SARDAR, A [1 ]
KEMPER, M [1 ]
机构
[1] COLUMBIA UNIV COLL PHYS & SURG,DEPT MED,NEW YORK,NY 10032
关键词
D O I
10.1177/0148607190014002216
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
The ability of the Datex Deltatrac (Sensor-Medics, Anaheim, CA) to accurately measure oxygen consumption (VO2v) and carbon dioxide production (VCO2) was examined in vitro using the carbon dioxide addition and nitrogen dilution methods. The accuracy of respiratory quotient (RQ = VCO2/VO2) measurements was assessed using methanol combustion (RQ = 0.67). Both in the canopy (blow-by) and respirator (FiO2: 0.21-0.6, PEEP: 0-12 cm H2O) modes the Deltatrac's measurements of VO2 and VCO2 were within +/- 7% of values predicted from CO2 and N2 simulations. Similar results were obtained with methanol combustion. In vitro testing revealed that the Deltatrac accurately measures VO2 and VCO2 under a variety of simulated clinical conditions. © 1990, SAGE Publications. All rights reserved.
引用
收藏
页码:216 / 221
页数:6
相关论文
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