Guest guest Posted October 6, 1999 Report Share Posted October 6, 1999 Thank you Dr. Ziegler in the explanation you gave below in to why the Western Blot test kit may not hold up to the constants needed to get good results. These tests kits I imagine will be sent out to labs across the country. And then all labs will be able to do the " Western Blot " test, and probably not trained in the proper protocol of how to do the test, and since not standardized, the results could be misleading and down right inaccurate. This is unsettling to think about some of our tests for certain diseases may not be done correctly skewing the results. A good practitioner must NOT depend on lab results alone. From the time the lab is drawn through the handling and final result cannot be trusted alone. Always look at the clinical signs and symptoms. I wonder if grant money was used to develop this test and whose pockets it is lining? Barb () Fitzmaurice, R.N. - Michigan BLFITZMA@... Re: [LYME-L] Lyme Tests The aim of a good Lyme Western blot is a good diagnosis. Therefore it need a good antigen (correct strain(s) of the borrelia), a good preparation of the antigen, a good separation and blot transfer. There needs an constant antigen load in the blotting membrane. So, a good western blot needs standardisation! If there are any problems in the manufactory protocol the test is not suitable for correct lab work. We know some Lyme western blots with very different quality, mostly there are problems in the separation protocol: The position of the antigenic bands is not constant enough. Furthermore, the load of the antigens in the membrane after blotting transfer is very different. So, follow up during desease and after therapy is not sure. The comparition with the EIAs is difficult, because there are the same problems in the antigen load of the wells. Mostly, the EIA antigen is not a full antigen. Therefore not all specific antibodies may be detected in the EIA. In summary, I think, that a new test kit not allways is a new chance for the patient: There is only a new chance for the manufacturer to get patients money. Clearance from the FDA (or in Germany by the PEI) gives no garanty for a suitable test in the daily lab work but it approves that the minimal preconditions for application in diagnostic procedure, given by the administration, are fullfilled. Dr. G. B. Ziegler Quote Link to comment Share on other sites More sharing options...
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