CPB (Certified Professional Biller) Certification Practice Exam

The term that means "away from" is indeed “ab-.” This prefix is often used in medical terminology to indicate a direction or a location that is away from a central point or reference. For example, in terms like “abduction,” it indicates movement away from the midline of the body.

The other terms provided do not relate to the concept of "away from." Terms like "extremities" refer to the distal parts of the body, which can be far from the center, but they do not specifically convey the idea of moving away from something. "Fat" describes a type of tissue and does not imply direction. "Abdomen" refers to a specific part of the body and is not indicative of movement or directionality. Therefore, “ab-” is correctly identified as the term that means "away from."