A medical device to test bodily fluid, the device comprising a light emitting source, the light emitting source arranged to emit light inside the medical device; a test strip port, the test strip port comprising a test strip port receptacle to receive a test strip; and the light emitting source and the test strip port arranged such that, when the light emitting source emits light, at least a portion of the light emitted from the light emitting source is redirected inside the medical device to provide redirected light inside the medical device, and at least a portion of the redirected light lights the test strip port from inside the medical device in a manner than the redirected light is visible outside the test strip port.