FAQ

Common

Why register?

Lab Tests

Why do different labs have different reference ranges? My blood test shows my neutrophilic granulocytes but they are not divided into segmented and band neutrophils. How should I fill in the interpretation table? What’s the difference between relative and absolute values of different forms of leukocytes in my blood test? My blood test shows both relative and absolute values. Why is there no field to enter absolute values? Why can't I type in my exact numbers and not just choose whether they were low, normal, or high?

Common

Why register?

As a registered user, you will be able to save the interpretation of your test results. It will be available in your Account. This will help you avoid having to reenter your lab values if you ever need to have your test results interpreted again.

Lab Tests

Why do different labs have different reference ranges?

While interpreting test results, it is important to take into consideration such factors as age, sex, pregnancy, etc. Also, lab values may be expressed in different measurement units.

The results of a test may depend on the chemical reagents and equipment used by the laboratory, meaning reference ranges depend on the testing method. In this case, it is essential that test results are interpreted based on the reference ranges used by the laboratory that performed the testing.

My blood test shows my neutrophilic granulocytes but they are not divided into segmented and band neutrophils. How should I fill in the interpretation table?

Perhaps, your blood test was performed with the use of a hematology analyzer that cannot detect immature forms of neutrophils. Enter your values into the Segmented Neutrophils field.

What’s the difference between relative and absolute values of different forms of leukocytes in my blood test?

A relative change in the white blood count occurs when only the percentage of any form of leukocytes is outside the reference range. An absolute change in leukocytes requires counting each type of cells per 1 liter of blood (measurement unit: 109 cells/L). For more information, please see the description of leukocytes.

My blood test shows both relative and absolute values. Why is there no field to enter absolute values?

Only relative values (%) need to be entered in the table, while absolute values are calculated automatically.

Why can't I type in my exact numbers and not just choose whether they were low, normal, or high?

A reference range can vary between different laboratories because laboratories use different testing equipment, chemical reagents, and testing methods. There are no universal reference values. Interpreting a test please use the reference range supplied by the laboratory where the test was made. Even if your test result is outside the reference range, this does not necessarily indicate a problem, especially if the values do not differ much from the reference range.