What kinds of tests are there?
There are 2 types of tests… one called testing and the other called screening. The first is a test to discover the causal mutation of HSP in an individual. The second is called screening, and this means that blood relatives of someone whose mutation is known are screened for the presence or absence of that mutation. Testing is more expensive than screening as testing involves searching for an HSP mutation. When a family mutation is known, screening involves going straight to the location of that mutation to check if it is present in other blood relatives. This is a simpler, easier and faster process… and therefore cheaper.
Testing for research purposes
Neurologists will sometimes ask an HSP patient if they can take a blood sample to have gene testing done for research purposes. It is important for HSPers to understand that the results of any such testing for research purposes will never be available to them due to the ethics considerations that require research samples to not be personally identifiable. However, in such cases, repeat testing can be done so that the information on any HSP mutation discovered is available and can be shared.












