Certified Electronic Health Records Specialist (CEHRS) Practice Exam

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What does the prefix 'cardi/o' indicate in medical terminology?

Blood
Heart
Nerve
Lung

The correct answer is: Heart

The prefix 'cardi/o' specifically denotes the heart in medical terminology. This prefix is derived from the Greek word 'kardia,' which directly translates to heart. It is frequently used in various medical terms to indicate a relation to the heart, such as in "cardiology," which is the study of heart diseases and conditions, or "cardiovascular," referring to the heart and blood vessels. Understanding this prefix helps healthcare professionals accurately describe conditions, procedures, and specialties related to the heart, contributing to effective communication in the medical field. The distinction of 'cardi/o' exclusively pointing to the heart also clarifies its use compared to other similar-sounding medical prefixes that pertain to different body systems.