scholarly journals National survey on turnaround time of clinical biochemistry tests in 738 laboratories in China

2017 ◽  
Vol 32 (2) ◽  
pp. e22251
Author(s):  
Xiaoyan Zhang ◽  
Yang Fei ◽  
Wei Wang ◽  
Haijian Zhao ◽  
Minqi Wang ◽  
...  
Author(s):  
Fengfeng Kang ◽  
Wei Wang ◽  
Zhiguo Wang

AbstractAccurate and reliable testing reports play an important role in the prevention, diagnosis, treatment and prognosis of disease. However, little is known about the appropriateness of laboratory testing reporting in China. This national survey takes clinical biochemistry as an example to investigate the state of reporting appropriateness in our country.An electronic questionnaire was sent to 1209 laboratories. The participants were asked to retrospectively evaluate the error rates of the following quality indicators: report template integrity, report content filling integrity, report delay, report recall, non-conformities between instrument and laboratory information system (LIS) data, non-conformities between report and request, report notification error, and report modification. Mann-Whitney and Kruskal-Wallis tests were used to identify the potential impacts of reporting appropriateness.A total of 662 of the 1209 laboratories (55%) submitted the survey results, with three returning incomplete data. For the integrity of the report, only 31% of the laboratories had a complete report template that contained all of 21 elements. In addition, the overall error rate of content filling integrity was 45.9% for 19,770 pieces of reports. The overall σ-values of other six quality indicators were all >4, and no significant difference was found among different departments. Group comparison suggested that reporting electronically had a better performance.The laboratory reporting system in China needs to improve, particularly the integrity of the report. Strengthening information technology will not only promote reporting appropriateness, but also guarantee accurate, standardized and traceable data collection and long-term monitoring.


2015 ◽  
Vol 25 (2) ◽  
pp. 213-221 ◽  
Author(s):  
Yang Fei ◽  
Rong Zeng ◽  
Wei Wang ◽  
Falin He ◽  
Kun Zhong ◽  
...  

2019 ◽  
Vol 23 (2) ◽  
pp. 287-292
Author(s):  
Vijayetha P Patil ◽  
Vidya S Patil ◽  
Shrirang P Kulkarni ◽  
Deepti G Ingleshwar ◽  
Rakesh T Muddaraddi ◽  
...  

Author(s):  
Sirazum M Choudhury ◽  
Emma L Williams ◽  
Sophie C Barnes ◽  
Jamshid Alaghband-Zadeh ◽  
Tricia M Tan ◽  
...  

Author(s):  
Mette F Møller ◽  
Tove R Søndergaard ◽  
Helle T Kristensen ◽  
Anna-Marie B Münster

Background Centrifugation of blood samples is an essential preanalytical step in the clinical biochemistry laboratory. Centrifugation settings are often altered to optimize sample flow and turnaround time. Few studies have addressed the effect of altering centrifugation settings on analytical quality, and almost all studies have been done using collection tubes with gel separator. Methods In this study, we compared a centrifugation time of 5 min at 3000 ×  g to a standard protocol of 10 min at 2200 ×  g. Nine selected general chemistry and immunochemistry analytes and interference indices were studied in lithium heparin plasma tubes and serum tubes without gel separator. Results were evaluated using mean bias, difference plots and coefficient of variation, compared with maximum allowable bias and coefficient of variation used in laboratory routine quality control. Results For all analytes except lactate dehydrogenase, the results were within the predefined acceptance criteria, indicating that the analytical quality was not compromised. Lactate dehydrogenase showed higher values after centrifugation for 5 min at 3000 ×  g, mean bias was 6.3 ± 2.2% and the coefficient of variation was 5%. Conclusions We found that a centrifugation protocol of 5 min at 3000 ×  g can be used for the general chemistry and immunochemistry analytes studied, with the possible exception of lactate dehydrogenase, which requires further assessment.


Author(s):  
P. B. Basham ◽  
H. L. Tsai

The use of transmission electron microscopy (TEM) to support process development of advanced microelectronic devices is often challenged by a large amount of samples submitted from wafer fabrication areas and specific-spot analysis. Improving the TEM sample preparation techniques for a fast turnaround time is critical in order to provide a timely support for customers and improve the utilization of TEM. For the specific-area sample preparation, a technique which can be easily prepared with the least amount of effort is preferred. For these reasons, we have developed several techniques which have greatly facilitated the TEM sample preparation.For specific-area analysis, the use of a copper grid with a small hole is found to be very useful. With this small-hole grid technique, TEM sample preparation can be proceeded by well-established conventional methods. The sample is first polished to the area of interest, which is then carefully positioned inside the hole. This polished side is placed against the grid by epoxy Fig. 1 is an optical image of a TEM cross-section after dimpling to light transmission.


2003 ◽  
Vol 13 (3) ◽  
pp. 13-15
Author(s):  
Karen Bailey-Jones ◽  
Rosemary B. Lubinski ◽  
D. Jeffery Higginbotham

Sign in / Sign up

Export Citation Format

Share Document