Instrumental bias in blood gas analysis of tonometered whole blood.
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چکیده
منابع مشابه
Instrumental bias in blood gas analysis of tonometered whole blood.
My purpose in investigating the effect of hemolysis on the accurate assessment of catecholamines and DOPA concentrations by the “Cat-A-Kit” radioenzymic method was to provide a basis for rejecting hemolyzed specimens, and thereby reduce the ever-growing backlog of specimens awaiting analysis in my freezer. I was surprised and disappointed to find that I could not discard hemolyzed samples as be...
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Although large differences in mean values and standard deviations of PO2 between models of blood gas instruments have been found in proficiency testing surveys employing commercial ampuled material, it is unknown whether or not equivalent differences would be found between instruments if a primary standard (tonometered fresh human blood) were used instead of ampules (secondary control specimens...
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We compared three commercially supplied blood-gas quality control solutions ("contrIL," "G.A.S.," and "Quantra") and tonometered whole blood under research and service conditions in four hospital laboratories. In some situations Quantra and tonometered blood were comparably sensitive to problems with blood-gas instrument malfunctions (e.g., hydraulics or temperature control) but the aqueous buf...
متن کاملInstrumental variability of respiratory blood gases among different blood gas analysers in different laboratories.
The aim of this study was to test the hypothesis that differences in oxygen tension (PO2) and carbon dioxide tension (PCO2) values from measurements performed on different blood gas analysers in different laboratories are clinically insignificant. Samples of fresh whole human tonometered blood (PO2 8.1 kPa (60.8 mmHg); PCO2 5.3 kPa (39.9 mmHg)) were placed in airtight glass syringes and transpo...
متن کاملArterial blood gas analysis.
With increasing use of arterial blood gas analysis in various ward and other hospital settings to aid medical diagnosis and management, nurses who can interpret results are often able to initiate earlier interventions and understand the reasons for medical interventions. This article enables nurses to interpret such results.
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ژورنال
عنوان ژورنال: Clinical Chemistry
سال: 1982
ISSN: 0009-9147,1530-8561
DOI: 10.1093/clinchem/28.3.550