Radiographers' knowledge, attitude and adherence to standard COVID-19 precautions and the policy implications: a national cross-sectional study in Nigeria.

BACKGROUND: We investigated the knowledge of COVID-19 pathogenesis and prevention, attitude, and adherence to safe clinical practices among radiographers during the pandemic and made some informed policy recommendations. MATERIALS AND METHODS: The study was an online cross-sectional survey. The questionnaire captured data on respondents' demographics, knowledge of COVID-19, attitudes, practices, and standard precaution adherence during the pandemic. Data were analysed using descriptive statistics, Pearson's correlation and one-way ANOVA tests. RESULTS: Of the 255 respondents, 17.3% were actively involved in the management of COVID-19 cases. Participants had high scores regarding their knowledge of COVID-19 pathology (82.46 ± 8.67%), prevention (93.43 ± 7.11%) and attitude (74.11 ± 11.61%), but low compliance to safety precautions (56.08 ± 18.56%). Knowledge about COVID-19 prevention strategies differed significantly across educational qualifications, F(3, 251) = 4.62, p = .004. Similarly, levels of compliance with safety precautions differed across educational qualification (F[3, 251] = 4.53, p = .004) and years-in-practice (F[4, 250] = 4.17, p = .003). CONCLUSION: Participants' adherence to standard COVID-19 precautions was low. The level of professional qualification influenced participants' knowledge and safe practices during the pandemic. Upgrading the aseptic techniques and amenities in practice settings and broadening the infectious diseases modules in the entry-level and continuous professional education may improve radiographers' response to COVID-19 and future pandemics.Key messagesRadiographers whose qualifications were lower than a bachelor's degree had significantly less knowledge of COVID-19 prevention.Generally, radiographers had a positive attitude towards safe practices during the pandemic, but inadequate education, standard operational guidelines and resources affected their level of adherence.Apart from the shortage of personal protective equipment, poor infrastructural design and inadequate hygienic facilities such as handwashing stations, running water and non-contact hand sanitizer dispensers hampered adherence to COVID-19 precautions in low-resource settings.

Variabilities of gallbladder contraction indices and a simple regression model for gallbladder and gastric emptying ratio.

INTRODUCTION: The objective of this study was to assess the variabilities of gallbladder contraction indices (GBCI) and derive a predictive model for gallbladder and gastric motility. METHODS: The gallbladder volume and gastric antral measurements were obtained from 24 healthy male volunteers in preprandial and post-milk ingestion states. After preprandial measurement of the gallbladder volume and gastric antral area, each subject ingested 157 ml of full cream milk and 30 cl of ion-free water. In supine position, the gallbladder volume and the gastric antral area were obtained every five minutes for 40 minutes. For the gallbladder while only the 5(th), 10(th) and 15(th) measurement of gastric antral area were obtained. Gallbladder contraction indices were calculated and gastric emptying ratio obtained at the fifteenth minute is the indication of gastric motility. Statistical analyses were conducted using SPSS version 16.0 with p < 0.05 as criterion of statistical significance. RESULTS: The GBCIs followed Gaussian response at some stages and did not at some other stages. The least variability occurred at the 35th measurement of GBCI. A cut- off value for the 35th minute GBCI value was established with the mean ± 2 SD (80.79 ± 11.5%). Obvious gallbladder refilling was noted after 35 minutes. A positive relationship was noted between gallbladder and gastric motilities. CONCLUSION: With milk dilution, the variability of gall bladder motility is least at the 35th minute. A significant positive relationship between gastric emptying and gallbladder contraction index was also observed.