Knowledge and Views of Paediatricians about Pulse Oximetry: a Nationwide Online Survey in Nigeria

ABSTRACT

Pulse oximetry is a non-invasive method of measuring oxygen saturation in clinical settings. This study was carried out to determine the level of knowledge and competencies relating to pulse oximetry and the ability to interpret the information.We conducted a nationwide, multi-centre, and questionnaire-based online survey between January and June 2010. A 32-item questionnaire relating to the use of pulse oximetry in children was answered by 224 in-training and 157 qualified paediatricians (median duration of practice 6 years) working in 24 states in Nigeria. Knowledge of pulse oximetry was evaluated on a scale of 0­100%. Data were analysed using Chisquare and t-test statistics at 5% level of significance.The overall mean test score was 36.6±20.8% (range0­76.5%). The mean knowledge score among intraining and qualified paediatricians was 35.4±19.1%and38.3±23.1%,respectively(p>0.05). Only 16.3% of the respondents answered all three questions correctly relating to the relationship between oxygen saturationand partial pressure of oxygen. Pertaining to the accuracy of pulse oximeters, 3.9% of the respondents answered all 14 questions correctly. On indications for use of pulse oximetry, 29% correctly answered all nine questions. Only 18% of respondents correctly answered the seven questions on interpretation of pulse oximeter reading. Some 73% of respondents believed that training in the use of pulse oximetry was inadequate.A significant proportion of the paediatricians were untrained in pulse oximetry, lacked knowledge of basic principles, and made serious errors in interpretation of readings from pulse oximeters. We suggest that medical schools and residency training programmes place more emphasis on teaching the principles and uses of pulse oximetry