Objective To estimate the critical value notification of emergency specimens in general laboratory whether a-chieved the desired goals,and to apply quality improvement measures to achieve quality improvement purposes.Methods Critical values of emergency specimens in general laboratory were monitored and collected in 2014.Statistical analysis was done for non-notification rates and sources of the critical values,and quality improvement began in July,2014 by training, continuing education and amonthly bulletin of notification data of critical values.Results Total number of Critical values of emergency specimens in general laboratory in 2014 was 2 648 and 1 950 of them had been reported by telephone.Total notifi-cation rate was 61.4% in the first 6 months,and was 81.4% from July to December.At last,Critical value notification rates increased to 97.72% in December.Conclusion Strengthening the management of critical value notification can help impro-ving the quality of laboratory service,as well as enhancing stuff responsibility and awareness of service for clinic.

Objective To investigate the glycosidic linkage and immunomodulating activities of crude polysaccharides from the seeds of Zea mays. Methods Extraction, isolation and purification of polysaccharides were carried out with boiling-water extraction plus resolving deposit repeatedly. The structure was elucidated on basis of physicochemical properties and spectral data, and the biological activities were evaluated by means of Immunopharmacological examination. Results The structure of polysaccharides from the seeds of Z. mays exhibited identical structure with rice bran polysaccharides, i.e., a kind of glucan withα-1,4 andα-1,6 glucosidic bonds as the main frame. Conclusion Polysaccharides was obtained from the seeds of Z. mays for the first time, and it showed significant immunomodulating activity in mice.