Perception versus reality: the measuring of pleural fluid pH in the United States

Respiration; International Review of Thoracic Diseases
Mark R BowlingRobert Chin

Abstract

Pleural fluid pH measured by a blood gas analyzer is the only recommended method of pH measurement to guide management for patients with parapneumonic pleural effusions. Not all hospitals use blood gas analyzers for pleural fluid pH determination and it is unknown if physicians are aware of this problem. To determine if a discrepancy exists between the modality used for measuring pleural fluid pH and how physicians believe it is measured. We surveyed pulmonologists randomly across the USA by e-mail inquiring how they thought pleural fluid pH was measured at their laboratory. We then independently contacted the laboratory and asked how pleural fluid pH was actually measured. Two hundred and sixty-seven pulmonologists completed the survey. Eighty-six percent of the pulmonologists use pleural fluid pH to manage complicated parapneumonic effusions. Forty-three percent did not recognize blood gas analyzer solely as the most accurate and validated method. Thirty-nine percent of the physicians who use pleural pH to manage effusions and believe that blood gas analyzers are the most accurate were wrong in their assumption that their laboratory was using this tool for pleural pH measurement. Whether it is due to inaccurate knowledge or a...Continue Reading

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Citations

May 16, 2013·Current Opinion in Pulmonary Medicine·Benjamin PutnamMark R Bowling
May 7, 2013·Clinical Biochemistry·Darci R BlockBrad S Karon
Jul 14, 2018·The Clinical Respiratory Journal·Eihab O BedawiNajib M Rahman
Aug 3, 2021·Respiratory Medicine·Justin K LuiFrank Schembri

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