blood draw

Where do you like to buy your red top blood tubes from? I only have four goats to test so I'm looking to buy the smallest amount possible. Secondly, I see that supposedly they expire, are they really only good for a year?

Had her tested... NO CL!!!!! We took Miss Mindy to the vet yesterday. The doc took a sample from her abcess to send to the lab, drew some blood and then lanced the abcess. Our vet felt very hopeful that it wasn't CL - consistancy, smell, etc. were not consistant with typical CL. Though we...