CPB (Certified Professional Biller) Certification Practice Exam

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Which prefix means 'against'?

Joint
Two
Condition
Against

The correct answer is: Against

The prefix that means 'against' is derived from the term "anti-". When considering the concept of prefixes, terminology that denotes opposition or counteraction is indicated by this particular prefix. The use of "against" in this context highlights its role in forming words that represent resistance or opposition, such as "antibiotic," which refers to substances that work against infections. In contrast, the other choices do not convey the meaning of opposition. The term that signifies 'joint' typically relates to combining or connecting elements. A prefix indicating 'two' denotes duality rather than opposition. Lastly, a prefix that refers to 'condition' implies a state or situation and does not suggest any form of resistance or opposition. Understanding these distinctions is crucial in medical billing and coding, as precise vocabulary is essential for accurate documentation and communication.