CPB Certified Professional Biller Certification Practice Exam 2025 - Free CPB Practice Questions and Study Guide

The purpose of an instrument referred to by the suffix '-graph' is to read and record data. The suffix '-graph' is typically used in medical terminology to denote a device that produces a record or a visual representation of specific information. For example, a "cardiograph" records the electrical activity of the heart, while a "sonograph" produces images based on ultrasound waves.

This understanding links directly to the function of such instruments, as they are designed to capture and display data for diagnostic and monitoring purposes. The option that refers to measuring or conducting, such as surgery or physical therapy, involves actions rather than the process of reading and recording, which is the core function of a '-graph' instrument. Thus, the choice that correctly identifies the role of an instrument with the suffix '-graph' as one that reads and records data aligns with medical terminology and its practical application in various diagnostic settings.