CPB Certified Professional Biller Certification Practice Exam

The prefix "tachy-" is derived from the Greek word "tachys," which means "swift" or "fast." In medical terminology, it is commonly used to describe conditions or factors that are associated with an abnormally fast rate. For example, "tachycardia" refers to a rapid heart rate, while "tachypnea" indicates increased breathing rate. Thus, when you encounter this prefix in medical terms, it signifies a speed that is above normal, making "fast" the correct interpretation. The other options refer to contrasting terms: "slow" indicates a reduced rate, while "narrow" and "wide" describe dimensions rather than speed. Understanding prefixes like "tachy-" is crucial in healthcare and billing, as they help convey essential information about a patient’s condition.