How to determine the numerical test by the blood analyzer ?

Medical equipment nets for everybody experts analysis: every time when we finish the body check or test, check the result many are using numerical range said, then the numerical standards is how to choose?

    Laboratory tests ultimate aim is to judge whether normal test results, so the laboratory tests should have normal or the normal range. Normal is judge test results have long used the concept, but because its meaning is not clear, concept owes accurately and be being washed out gradually, now on the list normal reference or reference range has been replaced.

    So,how to determine the reference or reference range is ? It is blood analyzer researchers have not had the normal people corresponding disease corresponding check, then use statistical methods to check the results of statistics, take the 95% or 97.5% range as referenced limits. In order to reflect the kidney function serum creatinine, for example, reference range is 44 to 133 μ mol/L, that is normal renal function of the crowd blood creatinine most distribution in 44 to 133 μ mol/L. If your blood creatinine test results was significantly higher than the 133 μ mol/L, the tip of your renal function may abnormalities.

    Note that the test results below or above referenced limits, also is not necessarily pathological state or had some kind of disease. Because a person's test results are influenced by many factors, such as violent activities, fever and cold and mental tension and so on, they will make the person appear in urine protein, and higher than the referenced limits cap proteinuria 150 mg / 24 h. This kind of urinary protein is the emergence of the human body's normal phenomenon, called the physiologic proteinuria, should with the kidney diseases caused by the pathological proteinuria phase difference. Athletes because muscular, its creatine muscle enzyme CK content will obviously higher than referenced limits, not that the sick. Such examples are many. In fact, the blood assay inspection just disease information analyzer, have the test results, the doctors then combined with symptoms, signs and other auxiliary examination information comprehensive analysis, the ability to form a correct judgment.

    In addition, different age or gender test results, can't use the same reference range judgment. Because of different age groups and different gender reference ranges exist differences, if use a range to judge, often can draw the wrong conclusion, misleading clinical judgment. For example through the blood analyzer research shows that primary son of bilirubin, the red blood cells, hemoglobin levels and adults vary widely; Children and adolescents of alkaline phosphatase level higher than adult; The old man's creatinine clearance naturally reduce; Male creatine kinase, acid phosphatase than women, and so on.