This may be due to differences in lab testing equipment, chemical reagents, and analysis techniques.
You must use the range supplied by the laboratory that performed your test to evaluate whether your results are 'within normal limits'.Most people can now access their lab test results directly via the Internet, but very few lab reports have been designed to convey the meaning of those results in a way people who are not health professionals can understand or put in context. The information provided in this article will help you understand:
Why so few reference ranges are provided in the test information on this site: the accuracy of laboratory testing has significantly evolved over the past few decades, but some lab-to-lab variability can occur.
Frequently, what is considered a normal result range in your area is not totally the same somewhere else. By using the interface you will be able to update name of measurement units and the parameter's reference range. The units of measurement that labs use to report your results can vary from lab to lab. Regardless of the units that the lab uses, your results will be interpreted in relation to the reference ranges supplied by the laboratory. It is similar to the way, for instance, your physician chooses to record your weight during an examination. In this same way, labs may choose to use different units of measurement for your test results. On the right hand of the parameter you can find a small button. Test's reference ranges may differ from lab to lab due to equipment and methodology differences. Click on the button and 'Reference Ranges' interface will popup. Open your test by clicking 'Edit Test' button. Also reference intervals may vary from area to area. Select a parameter on your test you want to update, for example 'Rheumatoid factor'. In Medical Tests Analyzer interface you can adjust measurement units naming and reference interval (range) as well. He can decide to note your weight in pounds or in kilograms.