Certified Paraoptometric (CPO) Practice Exam 2026 - Free Paraoptometric Practice Questions and Study Guide

The suffix that indicates an abnormal state is "-osis." This term is commonly used in medical terminology to describe conditions or diseases that are characterized by a deviation from the normal structure or function of a part of the body. For instance, "sclerosis" refers to an abnormal hardening of body tissue, and "neurosis" indicates a type of mental disorder.

The other suffixes serve different purposes in medical language. "-ectomy" denotes the surgical removal of a specific part, such as in "appendectomy," which refers to the removal of the appendix. The suffix "-ia" can refer to a condition or state, but does not specifically denote an abnormal state as clearly as "-osis." Lastly, "-itis" signifies inflammation, which is a specific response to injury or infection rather than a broad indication of an abnormal state.