The blood test hypo is a portable blood testing device which appears only in the 2002 video-game The Thing. Designed to test the identity of a suspected imitation, the hypo consists of a syringe, trigger and a mixing chamber. The individual's blood is extracted and passes into the mixing chamber, where it is exposed to a chemical agent which burns the blood when the two combine. If the suspect is infected the blood test will expose him. The device was presumably constructed by Gen Inc for experimentation purposes.