introduction: marginal adaptation of cast restorations is essential for their long-term success. as dentists usually assign ditching of dies to laboratory technicians, and ditching has a significant effect on marginal adaptation, the aim of this study was to compare ditching by laboratory technicians and standard approach on marginal adaptation of cast restoration. materials and methods: in thi...

the study has strived to compare the leucocyte-esterase stripe activity on sputum samples with gram-stained direct smear microscopy. this is for the demonstration of white blood cells (wbcs) and so to develop a simple method for selecting suitable sputum samples for cultural examination and laboratory diagnosis. . a total of 17(34.0%) out of 50 samples studied were shown to be unsuitable for mi...

background and objective: laboratory errors are one of the major factors that affect the diagnosis, prognosis, treatment and monitoring in patients.the objective of study is to evaluate the frequency and type of errors in different phases of testing at the pathology department of the shalamar hospital, lahore and to evaluate the causes of errors. methods: this observational study was carried o...

in number (16 of 22) of infants in the dutch laboratory rabbit breeding colony, in aged 45-65 days old, hair loss (alopecia) seen at the top of the head and around a week after the hair fall, was created in a state of complete alopecia. for determination of the cause of hair loss, after the observation and palpation the alopecic area, there have not been any swelling, abscesses, tumors. in s...

background: workers exposed to organic solvents are at risk of developing chronic central nervous system disorders. the aim of this cross-sectional study was to investigate the neurobehavioral effects of occupational exposure to organic solvents among pharmaceutical laboratory workers. methods: the study groups consisted of 78 laboratory workers as the exposed group and 98 office workers as une...

after four years of publishing the iranian national laboratory standard and following a strategic plan to implement its requirements, it was decided to review the taken actions, evaluating the achievements and the failures, as well as analyzing the gaps and planning the interventional activities to resolve the problems. a thorough evaluation revealed that the progress of implementation process ...

in september 2007 national standard manual was finalized and officially announced as the minimal quality requirements for all medical laboratories in the country. apart from auditing laboratories, reference health laboratory has performed benchmarking auditing of medical laboratory network (surveys) in provinces. 12(th) benchmarks performed in tehran and alborz provinces, iran in 2010 in three ...