Hi Guys,
I just got my intradermal done yesterday and the experience of it made me want to create a new thread so that we could discuss the Allergy tests more thoroughly. After all, these tests are incredibly important for most of us because if they don't come up "positive" we'll be denied treatment. But, as you can see from the Poll Center, there are quite a few individuals who unquestionably have our disorder but are producing "negative" tests.
I think my experience may speak to this problem somewhat. I tested positive yesterday but only did so after over 10 injections (and about 5 hours at the doctor) . My first injection was at about 1 : 40,000 and my "positive" injection was at about 1 : 150. In fact, had it not been for the fact that I've got an incredibly sympathetic and persistent doctor, I probably would've been diagnosed as not having the allergy. As i'll explain, I suspect that what caused this was a faulty or corrupted sample.
The difficulty that I experienced in getting a "positive" test got me thinking about all those folks who tested "negative" to the allergy tests, and what caused those results. (After all, a number of the people that tested negative initially seem to have tested positive under different circumstances.)
I think this topic is really important because if one of the methods that we use to get the sample used for the intradermal test is flawed, and that method is also used to get the densens samples, it should severely reduce the process's effectiveness.
. So I think we should make it a priority to determine what's causing the false negatives with our members!
For those of you that tested negative initially and later tested positive, what was different about the two tests? Were the samples frozen for the 1st one? Was there a long transport time? Was it ever exposed to any kind of heat? Was the second sample fresh? Did you take niacin beforehand?
Here are the conditions under which the doc got my sample: I forgot to fast the night before the test so I woke up very early (around 5am) and (after taking niacin) produced a sample. I placed the sample in the freezer, as instructed, until I drove to the doctor's at about 8:30. On the drive over, I had the heater on and it got somewhat toasty in the car. After about an hr of driving, I arrived at the doc's office and gave it to him.
It seems to me that either the heat, the cold, of the amount of time it took to get the sample to the doctor could've caused the sample to be incredibly weak or corrupted. (In fact, the doctor suggested that, in certain cases, such things could absolutely change the proteins and alter the test results.) And the weakness of my response at that very low dilution (1 : 150) -- I just got a fairly small dot, and didn't really get any POIS symptoms -- was fairly atypical. Most people seem to have reacted very strongly at 1 : 40,000 (for many it even induced POIS). So something is clearly up.
For those who tested positive, under what circumstances was your sample produced and delivered? (Maybe I should take this topic to the Poll Center)