A device performs a myringotomy and includes a main body oriented along a central axis. The main body includes an attachment hub for receiving components that provide suction. A hollow positioning member extends at least partially along the central axis, is coupled to the main body and includes a distal end. A cutting edge is located at the distal end of the hollow positioning member and is configured to pierce a tympanic membrane of a body. A sampling chamber is coupled to the main body for collecting at least a portion of the fluid located behind the tympanic membrane of the body using the components that provide suction at the attachment hub. A diagnostic indicator is housed in the sampling chamber and includes a visible indication of a test outcome when exposed to the fluid collected in the sampling chamber.