Appy mini,
at first I actually agreed that the tests are always accurate,but I myself have had a false positive. I dont see your response as ugly in anyway. Just as being curious to the status of your mare.
I know my mare didnt abort. I know I preformed the test correctly. I know the urine was not stored and it was diluted properly. I collected the sample with a clean paper cup and a clean paper towel and testes right away, as I wanted to know.
I have been in contact with wee foal and they have been very pleasant to deal with, They have even forwarded my e mail to Dr Henderson in New Zealand.
Basically I was told it was user error on my part. I had even sent pictures along with the e mail of both my neg and false positive tests.
This is the e mail from Dr Henderson.
It is unusual for the WeeFoal test to return a false positive result. There are a few possible causes such as the urine was stored too long before testing (over about 8 hours at room temperature) and this resulted in bacterial growth in the urine which can give a false positive result; the container the urine was collected in was not clean and the contents contaminated the urine (we have had an instance of a user collecting urine in a bucket that had previously held feed and there were still feed remnants in the bucket, and this gave a false positive result). If too much urine is added to the diluent, or the urine is not diluted before adding to the cassette well, this can return a false positive too. We have also had an instance where a mare which had foaled the previous year had not dropped its estrogen concentrations to the typical non-pregnant values, but were still at the low end of the range associated with pregnancy. However, as the first test showed a negative result this situation is unlikley. Also, if the test has not been stored properly, then this can result in a pregnant result, though there would also be a faint 'C' line. If the test itself has not run properly, then the 'T' line might not have shown up, but again this would be accompanied by a faint 'C' line. I wonder if Bonny noticed if the 'C' line was strong or faint in the test that gave a false positive result.