Effect of Gan-Pi regulatory needling in treating chloasma / 中国结合医学杂志

<p><b>OBJECTIVE</b>To study the effect of Gan-Pi regulatory needling (GPRN) in treating chloasma and its influences on female sex hormones, superoxide dismutase (SOD), lipid peroxide (LPO) and melanocyte-stimulating hormone (MSH).</p><p><b>METHODS</b>Ninety chloasma patients were equally randomized to three groups, the treatment group treated with GPRN, the control group treated with conventional Western medicine and the blank group untreated. Changes in the scores of skin lesion (area and color) and symptom, as well as blood levels of female sex hormones, MSH, SOD and LPO were observed and compared after 3 months of treatment.</p><p><b>RESULTS</b>In the treatment group, the scores of skin lesion area and color were reduced from 2.76 + or - 0.96 and 2.48 + or - 0.78 before treatment to 1.42 + or - 0.42 and 1.03 + or - 0.41 after treatment, respectively, while in the control group they were from 2.78 + or - 1.06 and 2.53 + or - 0.88 to 1.58 + or - 1.23 and 1.28 + or - 0.96, respectively, all showing significant changes (P<0.05); the scores were insignificantly changed in the blank group (P>0.05). At the same time, the score of symptoms in the treatment group significantly improved after treatment (P<0.05), significantly different from that of the other two groups. Comparison of female sex hormones among groups showed no significant differences either before or after treatment. The level of LPO decreased and SOD increased in both the treatment group and the control group significantly (all P<0.05), but significant lowering of MSH was only seen in the treatment group (P<0.05).</p><p><b>CONCLUSIONS</b>GPRN can effectively lessen the size and lighten the color of chloasma, improve the accompanying symptoms in patients and decrease LPO and MSH levels and increase the SOD level, but will not affect the level of the female sex hormones.</p>

Application of a calling and queuing system in blood sampling in the clinical laboratory / 中国医疗器械杂志

This paper introduces the application of a calling and queuing system for blood sample collection in a large hospital in China. Besides the basic function, it has following functions. (a) A real name system: get the number according to the laboratory application form to prevent the phenomena of buying a number and an empty number. (b) Two times waiting: the patient should wait at the main hall, then at the blood sampling window so as to improve the work efficiency. (c) The flowchart for an outpatient blood testing is as following: getting the number --> waiting --> blood sampling --> getting the test information report. This system is capable of not only optimizing the work flow, but also improving the clinical environment. It shortens the patient's waiting time and raises the laboratory quality as well.

Application of comparison method in internal quality control of hematology analyzer by using fresh blood / 浙江大学学报·医学版

<p><b>OBJECTIVE</b>To investigate the comparison method on internal control of hematology analyzer by using fresh blood.</p><p><b>METHODS</b>The hematology analyzer with well function was selected as the reference analyzer, fresh blood samples from healthy subjects were measured by reference analyzer and the values were used to calibrate compared hematology analyzers. The acceptable limits of relative deviation of WBC,RBC, HGB,HCT, PLT were established by comparative experiments during three months. The results of fresh blood samples from patients with low/medium/high levels measured by compared analyzer were compared with those from reference analyzer, the relative deviation of WBC, RBC, HGB, HCT, PLT was calculated respectively. The internal quality control charts in laboratory information system were established, with date as x-axis, relative deviation as y-axis. The acceptable relative deviation limits were set to be +/-2 s, and to be used for laboratory quality control.</p><p><b>RESULT</b>The relative deviation of WBC, RBC, HGB, HCT, PLT with high, medium, low levels were(0.75+/-2.964)%, (1.19+/-2.488)%,(1.43+/-2.439)%; (-0.39+/-1.327)%, (-0.26+/-1.297)%, (-0.35+/-1.095)%û(-0.43+/-1.393)%, (-0.17+/-1.139)%, (0.24+/-1.166)%û(-.43+/-1.362)%, (-0.36+/-1.381)%, (-0.57+/-1.299)%û(-0.93+/-4.330)%,(0.04+/-4.118)%, (-0.41+/-4.149)%, respectively in 2006. As the second instrument, the compared analyzer was involved in College of American Pathologists Proficiency Testing with satisfactory results, the bias of WBC,RBC, HGB, HCT, PLT were within (-0.5 approximately 5.1)%, (-1.0 approximately 1.6)%, (-1.7 approximately 1.4)%, (-1.5 approximately 1.3)%, (-4.5 approximately 7.4)%, respectively.</p><p><b>CONCLUSION</b>The quality control on compared hematology analyzer can be effectively, conveniently and economically performed using this method.</p>

Establishment of network laboratory for blood cell analysis and its quality assurance / 中华检验医学杂志

Objective To establish a network laboratory for blood cell analysis and better calibrate haematology analyzers in local lab.Methods According to GB/T 15481《General requirements for the competence testing and calibration laboratories》(idt ISO/IEC 17025),we established a network laboratory providing traceability for blood cell analysis.Complete blood count was traced to Calibration Laboratory in NCCL;The secondary standard haematology analyzer with the same model and calibrator with same lot number were used for verification for a long period.Fresh blood from healthy people was used to calibrate haematology analyzers.Results Gradually we have improved our laboratory quality management system, precision as well as accuracy,which was satisfactory.The unified blood sample was adopted to calibrate different equipments in our hospital and showed consistence when compared with calibration analyzer.The correlation coefficient of all tests is more than 0.99.The relative deviation of WBC,RBC,HCT,HGB and PLT are within?7%,?3.5%,?4%,?3% and?15%,respectively.Conclusions Secondary standard systems provides good comparable results with calibration laboratory.Its tracing mode and quality control scheme could ensure the traceability and accuracy of completed blood count.Furthermore,using elective fresh blood from healthy people,the comparable results from different analyzers were achievable.