Do stool test vials expire quickly? my doctor gave me 7 vials with preservative in them i think, for giving stool sample, but i haven't collected the stool yet. do the vials of liquid expire quickly?

Probably not : They probably don't expire quickly, but each vial manufacturer will have a different shelf life. Consider calling the manufacturer, or checking their website if the vials are labeled. You could always call your doctors office as well, and they can help you find out. Hope this helps!

Check the date: The expiration date should be stamped on the collection vials themselves. The print is usually black and small, and often printed sideways!