Illinois CNA State Practice Exam

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What is the meaning of the prefix "a-" in medical terminology?

Absence
Increased
Inflammation
Excessive

The correct answer is: Absence

The prefix "a-" in medical terminology usually indicates an absence, lack or absence of something. In this case, the correct answer is "absence", while the other three options are not related to the prefix "a-" and therefore incorrect. "Increased" (B) means higher or more, "Inflammation" (C) means a reaction to injury or infection, and "Excessive" (D) means more than what is necessary or normal. Therefore, these options do not accurately represent the meaning of the prefix "a-" in medical terminology.