Given the rapid advances in diagnostic medical technology over the past 10-20 years, it is more important than ever that doctors are knowledgeable about the laboratory tests available so that they can make well informed clinical decisions. This is where LabDX comes in.

Designed by William Schreiber, a professor & clinical pathologist, for medical students, doctors, nurses and other healthcare professionals who need quick access to information on over 200 laboratory tests. LabDX presents key points related to a specific test for a wide range of common tests.


Each test displays a normal reference range, common causes that may result in increased/decreased test results and a brief description of the test with common clinical implications. In addition, there is a link to, an award-winning, peer-reviewed website on laboratory testing, which has further key points and further detail regarding that specific test.


Finally there is a section where you can add your own notes for each test. In total, there are 27 categories in LabDX covering over 200 tests. Tests are arranged by categories or can be searched alphabetically.


LabDX also contains a range of tutorials on important topics ranging from acid base status to porphyrias and unexpected test results that is useful as a quick recap. Each one of these can be read in a few minutes and is useful to consolidate knowledge on a few select topics.


In general, LabDX is easy and straightforward to use. The inbuilt search function and index allow results to be found quickly. The level of detail is suitable for healthcare professionals of all levels and many will find LabDX is an ideal choice to turn to when lab results come back with no immediate obvious cause. The short reference book nature of LabDX is ideal for physicians in all specialties. One major point to consider is that the reference values provided in the application are from clinical laboratories at Vancouver General Hospital and other teaching hospitals affiliated with the University of British Columbia. This means that the precise values may be different at the user’s hospital.

One shortcoming is the lack of pediatric values which limits its use for those specializing in this area. This drawback suggests that the app may be a bit overpriced at $9.99 given that, relatively speaking, this is a lot of money in the App Store economy.


  • $9.99


  • Clear concise information with relevant clinical points
  • Wide range of tests in multiple categories


  • Lack of pediatric values
  • Possible question marks regarding its money value

Overall Rating:

  • This application is useful for healthcare professionals who want a quick reference guide to help them understand key lab results.
  • The inclusion of causes that may increase or decrease certain test results ensures that LabDX is particularly useful for those just starting to come into regular contact with lab results.
  • Despite question marks over price, this is a useful app and worth a look.

iTunes link