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estimated the number of referred patients, 60% saw more than >5 per month. Of centres with no policy only 26% estimated that they received >5 referrals per month. Without a policy 72% of referrals came from clinical suspicion alone.Overall 96% of respondents felt that all patients at high risk of OSA should be screened for OSA. 36 respondents thought it would be ethical to randomise identified cases of OSA to a potential trial of peri-operative CPAP or no CPAP, compared with 40 who did not. Conclusions There is no established UK standard practice for screening for OSA pre-operatively, despite a majority opinion amongst questionnaire responders that high risk patients should be. There would be cost implications if National pre-operative OSA screening was implemented and there therefore needs to be clear evidence based benefit before proceeding.