A person is using a medical testing machine with a computer interface. The screen shows a grid of test options, with some labeled "Allergen" followed by a number. Some of the test options are colored in orange, and it appears that some are expired. The person is operating the machine, as the computer screen shows the carousel of reagents rotating when the operator presses a key on the keyboard. They then open a gray panel on the machine. The machine is in a room with white tiled walls.