Noah Ditkofsky1, Haris N Shekhani2, Megan Cloutier3, Zhengjia Nelson Chen4, Chao Zhang4, Tarek N Hanna5. 1. Department of Radiology, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario, Canada. 2. Division of Emergency Radiology, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. 3. Department of Emergency Medicine, Emory University School of Medicine, Atlanta, Georgia. 4. Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia. 5. Division of Emergency Radiology, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. Electronic address: tarek.hanna@emory.edu.
Abstract
PURPOSE: The aim of this study was to assess knowledge of ionizing radiation exposure from diagnostic imaging examinations among emergency department (ED) providers. METHODS: An electronic questionnaire was distributed to ED providers in a five-hospital university-affiliated health care system. Providers included attending emergency medicine (EM) physicians, EM residents, and midlevel providers (MLPs) (nurse practitioners and physicians assistants). Data were collected and analyzed. RESULTS: One hundred six of 210 providers (41 attending physicians, 32 residents, and 31 MLPs) completed the survey, for a response rate of 50.5%. More than two in five providers (44.6%) could not correctly identify which of six common imaging modalities used ionizing radiation. MLPs were more likely to incorrectly identify radiography (25%) and fluoroscopy (29%) as modalities that did not use ionizing radiation (P = .01 and P = .25 respectively). Fewer attending physicians (14.6%) than residents (37.5%) were not very comfortable or were uncomfortable explaining the risks of radiation to patients. Nearly half of attending physicians (47.5%) and nearly three-quarters of residents (71.9%) were not very comfortable, were uncomfortable, or were extremely uncomfortable explaining the amount of radiation in certain imaging tests to patients. MLPs were more likely to incorrectly rank a selection of imaging tests by radiation exposure (P = .002). MLPs were more likely to incorrectly answer a question on the effects of ionizing radiation on patients (P = .01). CONCLUSIONS: Among ED providers, there are knowledge gaps regarding the presence and effect of ionizing radiation in diagnostic imaging tests. MLPs were more likely to make factual errors, while EM residents were least comfortable counseling patients about radiation risks.
PURPOSE: The aim of this study was to assess knowledge of ionizing radiation exposure from diagnostic imaging examinations among emergency department (ED) providers. METHODS: An electronic questionnaire was distributed to ED providers in a five-hospital university-affiliated health care system. Providers included attending emergency medicine (EM) physicians, EM residents, and midlevel providers (MLPs) (nurse practitioners and physicians assistants). Data were collected and analyzed. RESULTS: One hundred six of 210 providers (41 attending physicians, 32 residents, and 31 MLPs) completed the survey, for a response rate of 50.5%. More than two in five providers (44.6%) could not correctly identify which of six common imaging modalities used ionizing radiation. MLPs were more likely to incorrectly identify radiography (25%) and fluoroscopy (29%) as modalities that did not use ionizing radiation (P = .01 and P = .25 respectively). Fewer attending physicians (14.6%) than residents (37.5%) were not very comfortable or were uncomfortable explaining the risks of radiation to patients. Nearly half of attending physicians (47.5%) and nearly three-quarters of residents (71.9%) were not very comfortable, were uncomfortable, or were extremely uncomfortable explaining the amount of radiation in certain imaging tests to patients. MLPs were more likely to incorrectly rank a selection of imaging tests by radiation exposure (P = .002). MLPs were more likely to incorrectly answer a question on the effects of ionizing radiation on patients (P = .01). CONCLUSIONS: Among ED providers, there are knowledge gaps regarding the presence and effect of ionizing radiation in diagnostic imaging tests. MLPs were more likely to make factual errors, while EM residents were least comfortable counseling patients about radiation risks.
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