Knowledge of pulse oximetry among general practitioners in South Australia

Abstract

Introduction: Research in different hospital settings has shown that clinicians' understanding of pulse oximetry is limited. No data are available about knowledge among general practitioners (GPs). Aims and objectives: The aim of our study was to gain insight into the current knowledge, interpretative skills of GPs with regard to pulse oximetry. Methods: A cross-sectional observational survey was performed. Overall knowledge of GPs regarding pulse oximetry was evaluated with help of a newly developed questionnaire (based on previously reported surveys). Secondary, the influence of saturation values on GP decision making was explored. GPs were asked to complete the questionnaire: 1) via a newsletter (containing a digital link to the questionnaire) that was emailed to GP networks in and around Adelaide (Australia); 2) in person during a workshop and conference. Results: 42 GPs and 4 GP registrars participated. From the participants, 60.9% owned a pulse oximeter and 76.1% had experience with pulse oximetry. 58.7% believed they had not received adequate training in pulse oximetry. The overall mean score was 35.0% (SD 19.1%). A significant negative correlation between years of experience in general practice and knowledge was found (p<0.05). GPs with pulse oximetry experience scored significantly higher (p<0.05). Knowledge of the saturation value did not seem to influence the management plans of the GPs. Conclusions: Knowledge of pulse oximetry seems poor among GPs and GP registrars. Good training is essential to prevent errors in the interpretation of pulse oximetry readings, which may have the potential of causing harm to patients.