It has been found that approximately 30% of requests for imaging are inappropriate (see paper by Lehnert and Bree in References at section 12). This results in increased health costs, patient inconvenience and potential harm for the patient. It may also result in delayed or missed diagnosis, because if you have requested the wrong test then the patient is not receiving the correct test.
‘Diagnostic Imaging Pathways’ is an online clinical decision support and educational tool for diagnostic imaging (Health Dept of Western Australia).
This web site is designed to aid in judging the most appropriate clinical imaging procedure given the patient's symptoms. It also gives indications of the radiation dose that will be received by the patient.
You should go to www.imagingpathways.health.wa.gov.au