I sent a FOBT specimen back to my clinic's lab. (For those of delicate sensibilities, I decided that if you didn't know what FOBT meant, you probably didn't know the answer......but beware of what they say about curious cats).
When the lab results were not posted on my online account, I called to see if they had received it. They had not, claimed it was not them, and therefore to wait a bit longer for the USPS to deliver.
Eventually, I got them to send me another kit, and sent #2 specimen in.
Shortly thereafter, the results for #1 specimen were posted but since there was quite a long time between collection and analysis, I am wondering about the validity of the test. My doubt comes both from comments that they made and also from the fact that you are requested to put the collection date on the specimen. Just to clarify.......this is the newer kit where there are no dietary restriction and where you collect the sample on a threaded plastic rod that is then inserted into a clear liquid (alcohol
?) for shipping. If there is a shelf life, I imagine it might depend on environmental conditions. If they lost it in handling/processing within the lab (which they initially denied), it would be one thing. If the specimen sat in a locked USPS truck in the sun, it would be another. Admittedly, this is not summer, but this is not snow country either.