These skills can then be adapted to more automated technology. Many coagulation analyzers are provided as a package of instrument and reagent, and both components can influence the results obtained. This needs to be taken into account when evaluating and selecting

a system. Other important issues to consider are: type of tests to be performed and the workload, as well as workflow, in the laboratory operational requirements (power, space, humidity, temperature, etc.) service requirements and Trametinib supplier breakdown response throughput and test repertoire costs ability to combine with reagents from other manufacturers user-programmable testing comparability between results on primary analyzer and any back-up methods compatibility with blood sample tubes and plasma storage containers in local use safety assessment (mechanical,

electrical, microbiological) availability of suitable training Information is required in relation to the performance characteristics of the system. This can be obtained from a variety of sources including the published literature and manufacturers’ data, but may also require some form of local assessment. Aspects to consider include: precision of testing with a target of <3% of CV for screening tests and <5% for factor assays carry-over interfering substances reagent stability on board analyzer comparability with other methods sample identification data handling, software, and quality control training required reliability A number of published guidelines and recommendations describe the evaluation of coagulation analyzers [12, 13]. It is good practice to ensure continuity of supply of a chosen beta-catenin pathway reagent, with attention paid to continuity of batches and long shelf-life.

This may be achieved by asking the supplier to batch hold for the laboratory, if possible. Changing to a different source of material is not recommended unless there are supply problems or because of questionable results. Different brands may have completely different sensitivities and should not be run side by side. Instructions supplied with the reagent should be followed. Particular attention should be paid to reagent stability. Once a reagent is reconstituted or thawed for daily use, there selleck compound is potential for deterioration over time depending on the conditions of storage and use. Once an appropriate test and reagents have been decided upon, normal/reference ranges should ideally be defined, and must take account of the conditions used locally. Quality assurance (QA) is an umbrella term used to describe all measures taken to ensure the reliability of laboratory testing and reporting. QA covers all aspects of the diagnosis process from sample-taking, separation and analysis, and internal quality control through to reporting of the result and ensuring that it reaches the clinician. It is the responsibility of everyone involved to make sure that the procedures are followed in the correct manner.