First of all, picograms are ridiculously minute amounts that have never to my knowledge been shown to affect a horse. These tests aren’t necessarily developed to pick up actually relevant levels that could change an outcome but just because they can.
This is my last post for the night. I swear.
A 0.01 positive picogram test rarely means the horse had a recent tiny exposure that is to low to affect it. Rather, the most likely case is that betamethasone was used on the horse at a dose to cause some change, and the measurable amount of betamethasone in the horse decreases over time until it eventually reaches zero picograms. Theoretically, in Medina Spirit’s case, the betamethasone administered wasn’t fully metabolized and flushed from the system by the time of testing, so they caught it. Drugs get used illegally every day, but as long as there’s no evidence left of them at the time of testing, you can’t prove anything. There is a reason cops want to test your BAC the moment they pull you over. If you keep them talking for two hours, your 0.10 BAC might fall to 0.06 and then they can’t charge you with a DUI because they can’t prove you were ever a 0.10.
A horse is still affected by betamethasone usage even when the drug is no longer measurable in the system. If that wasn’t the case, we’d have to reinject on such a constant basis that we might as well put ports in.
The problem racing is having is that when you smooth away signs of lameness in these horses, you don’t necessarily fix the underlying issue. In a sport where horse deaths are splashed across the news, hiding a lameness isn’t acceptable. So, yes, regulators require a zero picogram test because they are trying to dissuade the running of horses with an increased risk of messily dying in front of a crowd. I don’t watch horse racing live any more because watching Eight Belles trying to stand on her shattered front legs left me so disturbed and ill I can’t handle it. Racing is desperately trying to control the controllable when it comes to catastrophic breakdowns. Limiting use of anti-inflammatories prior to a race is part of controlling the controllable.