Clinical Decision Support System

This is why the term 'reference range' is preferred over 'normal range'.

When you examine test results from different populations, you quickly discover that what is 'normal' for one group is not necessarily normal for another group. Indeed for tests such as cholesterol the idea of a normal range has been replaced to a large extent by use of target values, achieved either by lifestyle changes or active treatment.
Whether or not your test result is within the laboratory reference range, the result must be considered within the context of your personal circumstances, and with the benefit of your doctor's knowledge of your past medical history, current medication and the results of any other investigations.The reference range is then derived mathematically by taking the average value for the group and allowing for natural variation around that value (plus or minus 2 standard deviations from the average). The first step in determining a reference range is to define the population to which the range will apply. In this way, ranges quoted by labs will represent the values found in 95% of individuals in the chosen 'reference' group. A large number of individuals from a group who are thought to represent a 'normal' population, will be tested for a particular laboratory test. In other words, even in a 'normal' population, a test result will lie outside the reference range in 5% of cases (1 in 20).

However we are not medical professionals, and we do not intend to be.Customers always choose SmrtX for the high quality and the reliability of our products and services in healthcare information technology. SmrtX partners with healthcare organizations to continuously and measurably improve care every day, for every patient, every time. But those who go beyond - to get to know us beyond our products - choose SmrtX for our philosophy because it works for them. SmrtX is a creative ISV (Independent Software Vendor) specializes in intelligent medical software solutions with the mission of helping the small healthcare provider and patients.