DNA specimen quality was checked by amplification of a 268-bp human β globin gene region [ 8].
RT-PCR detects norovirus at lower concentrations and is less affected by specimen quality and preparation than electron microscopy [ 3- 5]; large numbers of specimens can be tested simultaneously, compared to the single throughput for electron microscopy.
These data show that the specimen preparation methods used to isolate the malignant cells from a patient's bone marrow aspirate are robust and not impacted by natural variations in specimen quality and relative quantity of malignant plasma cells.
QC reports by Site contain details about the specimen quality such as percent necrosis, whether the patient received prior treatment, specimen type, amount of available specimen, etc.
The failure to isolate arenavirus from Mexican deer mice in this study could be caused by small sample size or poor specimen quality.
Samples are thawed at a central laboratory for assay or specimen quality control and sample quality data is uploaded directly to the database by the central laboratory.
The program has evolved by developing and incorporating best practices for laboratory and specimen quality and implementing automated, web-based tools.
To test the effect of sperm specimen volume in the freezing-thawing process on specimen quality.
No definite neuronal component was evident by report, although this may have been difficult to discern due to poor specimen quality.
Thus, specimen quality was considered adequate for analysis.
