Free, not gratis!
Free, not gratis – image ©

We recently had an elderly cat that presented with typical signs of hyperthyroidism.

However, as is sometimes the case, total T4 proved stubbornly normal on two estimations a couple of weeks apart.

So we suggested it would be a good idea to send a blood to the lab for free T4 estimation – and you may be able to guess what’s coming next…

But, you said…

Yes, you’re right – the client then complained profusely that they had to pay for the test, because (and I quote): “You said it was free!”

We now call this an “unbound” thyroid blood test – it just makes life simpler.

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