Ohio General X-Ray Machine Operator (GXMO) Practice Exam

FIFO means handling items in the order they arrive: the earliest received are the first to be processed or used. In a radiology setting this helps ensure older stock—like film, chemicals, or supplies—gets used before newer stock, reducing waste and expiration risk. It also reflects the idea of a queue, where items wait in line and are completed in the same order they were added. The correct phrase is "First In, First Out." The other options aren’t standard: "Fast In, Fast Out" isn’t a recognized method; "First In, Last Out" would mean the newest items are used first; and "In, First Out" is missing the first word.