On the right hand of the parameter you can find a small button.
In this same way, labs may choose to use different units of measurement for your test results. He can decide to note your weight in pounds or in kilograms. Click on the button and 'Reference Ranges' interface will popup. Open your test by clicking 'Edit Test' button. It is similar to the way, for instance, your physician chooses to record your weight during an examination. Test's reference ranges may differ from lab to lab due to equipment and methodology differences. In Medical Tests Analyzer interface you can adjust measurement units naming and reference interval (range) as well. Regardless of the units that the lab uses, your results will be interpreted in relation to the reference ranges supplied by the laboratory. The units of measurement that labs use to report your results can vary from lab to lab. Also reference intervals may vary from area to area. Select a parameter on your test you want to update, for example 'Rheumatoid factor'. By using the interface you will be able to update name of measurement units and the parameter's reference range. Frequently, what is considered a normal result range in your area is not totally the same somewhere else.
For most substances presented, the optimal levels are the ones normally found in the population as well. This may also be called standard range. Reference ranges are usually given as what are the usual (or normal) values found in the population, more specifically the prediction interval that 95% of the population fall into. It is a basis for a physician or other health professional to interpret a set of results for a particular patient. However, usual and optimal levels may differ substantially, most notably among vitamins and blood lipids, so these tables give limits on both standard and optimal (or target) ranges.However, there are also optimal health ranges that are those that appear to have the optimal health impact on people. Reference range or reference interval usually describes the variations of a measurement or value in healthy individuals. In contrast, optimal (health) range or therapeutic target is a reference range or limit that is based on concentrations or levels that are associated with optimal health or minimal risk of related complications and diseases. The standard definition of a reference range (usually referred to if not otherwise specified) basically originates in what is most prevalent in a reference group taken from the population. More specifically, optimal levels are generally close to a central tendency of the values found in the population.