Medical Test Analyzer Medical lab tests are tools useful in Differential Diagnosis estimating Test procedures the health condition of an individual Symptoms It is important to understand that laboratory Online Decision Support results may be outside of the normal interval range for variety of factors These declinations can correspond to such things as food preference, age, race, sex, menstrual cycle, physical exercises, handling of the specimen and samples collection problems, over the counter medications cold drugs, aspirin, vitamins, etc