Accuracy of pleural fluid pH and PCO2 measurement in a blood gas analyser. Analysis of bias and precision
Pleural fluid pH measurements are used in the management of parapneumonic effusions. This study evaluated the accuracy of the pleural fluid pH and PCO2 measurement in a blood gas analyser (BGA) and the error induced by altering the aerobic environment and temperature of sample storage prior to analy...
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| Veröffentlicht in: | Scandinavian journal of clinical and laboratory investigation 1999-12, Vol.59 (8), p.619-626 |
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| container_title | Scandinavian journal of clinical and laboratory investigation |
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| creator | VENKATESH, B BOOTS, R.J WALLIS, S.C |
| description | Pleural fluid pH measurements are used in the management of parapneumonic effusions. This study evaluated the accuracy of the pleural fluid pH and PCO2 measurement in a blood gas analyser (BGA) and the error induced by altering the aerobic environment and temperature of sample storage prior to analysis. The pH electrodes in a pH meter and a BGA were initially evaluated using aqueous reference solutions. The accuracy of pH and PCO2 electrodes was then assessed in pleural fluid tonometered to a known PCO2. The effects of aerobic compared to anaerobic storage and storage temperature, 0°C vs 37°C of pleural fluid were evaluated for errors in pH and PCO2 |
| doi_str_mv | 10.1080/00365519950185111 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0036-5513 |
| ispartof | Scandinavian journal of clinical and laboratory investigation, 1999-12, Vol.59 (8), p.619-626 |
| issn | 0036-5513 1502-7686 |
| language | eng |
| recordid | cdi_pubmed_primary_10691053 |
| source | MEDLINE; Taylor & Francis:Master (3349 titles); Taylor & Francis Medical Library - CRKN |
| subjects | Biological and medical sciences Biosensing Techniques Blood Gas Analysis - standards Carbon Dioxide - analysis Humans Hydrogen-Ion Concentration Investigative techniques, diagnostic techniques (general aspects) Medical sciences Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques Pleural Effusion - chemistry Preservation, Biological Reference Standards Respiratory system Sensitivity and Specificity |
| title | Accuracy of pleural fluid pH and PCO2 measurement in a blood gas analyser. Analysis of bias and precision |
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