DNA/RNA Shield Fecal Collection Tubes – DX are specimen receptacle medical devices for molecular-based in vitro diagnostic applications. These fecal collection tubes take a microbial snapshot of a sample while inactivating viruses making samples safe and ready for transport. Samples stored in the these fecal collection tubes are stable at ambient temperature, and can be frozen for longer-term storage. Simply collect a spoonful of the specimen into the stool collection tubes prefilled with preservative and shake vigorously to ensure proper stabilization.