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Published: 3 Sep 2023 Reference Ranges of blood tests tool

A false positive result means your test shows you have a disease or condition, but you don't actually have it.

A false negative result means your test shows you don't have a disease or condition, but you actually do.
These incorrect results don't happen often, but they are more likely to happen with certain of types tests, or if testing was not done right. Even though false negatives and positives are uncommon, your provider may need to do multiple tests to make sure your diagnosis is correct.
What factors can affect my results?
There are many factors that can affect the accuracy of your test results. These include:
Certain foods and drinks
Vigorous exercise
Variations in lab procedures
Having an illness
If you have any questions about your lab tests or what your results mean, talk to your health care provider.

Knowing something is 'off' will tell you what to look up on the internet, and knowing this you may be able to spot something the doctors miss. Medical Tests Analyzer is the best software tool.Want to know some of the optimal ranges for blood chemistry figures? It's more complicated than the following list since the numbers change based on your age and weight and sex, but here's a good reference range to keep handy. It is determined by collecting data from vast numbers of laboratory tests. A reference range is usually defined as the set of values 95 percent of the normal population falls within (that is, 95% prediction interval). Reference ranges for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples.