Absolutely yes, because the most severe risks are associated with the bacteria reaching the heart and into the nervous system, which is a relatively slow process. There's a window of a couple of weeks.
If you could know as soon as you were bitten whether there was any risk of infection at all, that would be very valuable information.
I think it's only a one in ten chance that an infected tick would transmit the infection, anyway. But you would know whether you needed to even book an appointment.
As long as you’re not getting bitten by a tick more than once a year if you do get bitten every time take the high dose antibiotic seems simple enough that’s what we do here at at least
> But you would know whether you needed to even book an appointment.
Only if the test is sufficiently accurate to rule out transmission. Even molecular tests can't reliably predict that.