However, services are already being encouraged to implement TIA clinics 7 days a week. The committee acknowledged that setting up responsive (7 days a week) services in trusts that do not currently offer daily clinics could require significant additional resource and this may result in a substantial resource impact for the NHS in England. However, preventing stroke is likely to result in cost savings later on. The recommendation on offering measures for secondary prevention reflects current practice so no change is expected. Return to recommendations Imaging for people who have had a suspected TIA or acute non-disabling stroke Why the committee made the recommendations No evidence was identified from test-and-treat trials (which the committee considered would have been the most useful form of evidence to inform decision making). In these studies, different imaging strategies are performed on randomised groups followed by management on the basis of the results, to compare patient outcomes after different imaging strategies. Therefore, the committee used their knowledge and experience to conclude that clinical assessment is the best form of diagnosis at this point. The 2022 committee agreed that CT is most useful when there is a clinical suspicion of an alternative diagnosis that CT could detect. It should not be routinely performed for everyone with a suspected TIA because it rarely confirms a diagnosis in these patients. Routine CT imaging is common in current practice and the committee agreed that this could waste resources, extend the length of stay in the emergency department, and expose people to unnecessary radiation. The committee discussed the possible risks of not offering CT brain imaging to everyone with a suspected TIA. 