Not intentionally hijacking this thread but as the biggest coward on earth when it comes to needles AND having to have blood tests every 4-6 months, what is the "patch" y'all have mentioned?

I'm so lily-livered I have to have a baby needle for a nuclear stress test.

It takes everything I've got just to stagger from my car to the lab. The second the test is done, I'm totally a happy camper and have no trouble until the next time I have to go in.

I've never heard of anything to use before or during a blood test.