ObjectiveTo analyze and discuss the effect of 10 min delay observation on the accuracy of skin test results by directional medication device,so as to provide valuable references for future clinical work.Methods358 patients who were admitted to our hospital and received skin test by directional medication device from January 2015 to December 2016 were selected as the research subjects.5 min after the test,the results of skin test were observed.If the results after 5 min showed negative,but the patients self-reported symptoms of discomfort,the observation was delayed to 10 min.The observation results were recorded.ResultsIn this group of subjects,after 5 min and 10 min delayed observation,a total of 65 patients were detected as positive.The positive rate was 18.16%,and the positive rate within 5 min(12.85%)was less than the positive rate within 10 min (P＜0.05).There was no longer positive detection after 10 min.ConclusionThe observation of 10 min delay can improve the positive rate of skin test by directional medication device,increase the accuracy of the results,improve the nurses′work efficiency and obtain good social benefits.