CRCST · Professional Development and Human Relation Skills · 5 min read
Medical and Surgical Terminology
- Analyze the structural components of medical terms, including word roots, prefixes, suffixes, and combining vowels.
- Differentiate anatomical roots, directional terms, and body positions used to describe surgical procedures and locations.
- Apply medical, surgical, and instrument terminology to sterile processing duties, including cleaning, decontamination, inspection, assembly, packaging, sterilization, and storage according to manufacturers' instructions for use and facility policy.
Word Structure: Roots, Prefixes, Suffixes, and Combining Vowels
In the sterile processing department, technicians are responsible for the cleaning, decontamination, inspection, assembly, packaging, sterilization, and storage of surgical instruments. To carry out these vital duties safely and efficiently, technicians must follow manufacturers' instructions for use and facility policy. A thorough understanding of medical and surgical terminology enables technicians to correctly interpret tray assembly lists, verify instrument functions, and ensure surgical sets are prepared properly.
Medical terms are built from foundational components that work together like interlocking pieces. The core element of any medical word is the word root, which provides the primary meaning of the medical term. Modifiers are added to this core to alter or refine that core concept. A prefix is placed at the beginning of a word root to modify its meaning, while a suffix is placed at the end of a word root to modify its meaning.
To make complex terms easier to pronounce and link together, medical language relies on a combining vowel. A combining vowel, which is most commonly the letter 'o', joins word roots together or connects a word root to a suffix. By learning how word roots, prefixes, suffixes, and combining vowels assemble, sterile processing technicians can decipher unfamiliar surgical terms, identify instruments, and maintain strict adherence to facility policy and manufacturers' instructions for use.
Common mistakes
- Confusing surgical suffixes with similar spellings, such as mistaking '-otomy' (surgical incision or cutting into) for '-ostomy' (surgical creation of an artificial opening) or '-ectomy' (surgical excision or removal).
- Mixing up body positions, specifically confusing 'prone' (lying face down) with 'supine' (lying face up on the back).
- Confusing anatomical directional opposites, such as mistaking 'medial' (closer to the midline) for 'lateral' (farther from the midline), or 'proximal' (closer to point of attachment) for 'distal' (farther from point of attachment).
- Failing to recognize instrument functions, such as confusing a rongeur (used to cut or bite away tough tissue or bone) with a curette (having a scoop- or loop-shaped end used to scrape tissue or other material).
Key points
- Medical words are constructed from word roots that provide primary meaning, prefixes placed at the beginning to modify meaning, suffixes placed at the end to modify meaning, and combining vowels (most commonly 'o') that join roots together or connect roots to suffixes.
- Major anatomical word roots include arthr/o (joint), cardi/o (heart), chole (bile or gall), cyst/o (urinary bladder or cyst/sac), cyt/o (cell), derm/o or dermat/o (skin), enter/o (small intestine), gastr/o (stomach), hem/o or hemat/o (blood), hepat/o (liver), hyster/o (uterus), nephr/o or ren/o (kidney), oste/o (bone), pneum/o (air or lung), and pulmon/o (lung).
- Diagnostic suffixes indicate conditions or diseases, such as -algia (pain), -itis (inflammation), -megaly (enlargement of an organ or body part), -oma (tumor or mass), and -pathy (disease or disorder).
- Prefixes alter meanings to indicate rates, amounts, and locations (such as brady-, tachy-, a-/an-, anti-, dys-, endo-, hemi-, hyper-, hypo-, inter-, intra-, peri-, sub-), while surgical suffixes define interventions (-ectomy, -otomy, -ostomy, -plasty, -pexy, -rrhaphy, -scopy).
- Directional terms and positions describe anatomy and orientation: anterior/ventral (front), posterior/dorsal (back), superior (above/toward head), inferior (below/toward feet), medial (closer to midline), lateral (farther from midline), proximal (closer to attachment/origin), distal (farther from attachment/origin), prone (face down), and supine (face up on back).
- Specialized instruments include devices ending in '-tome' (cutting instruments), rongeurs (cutting or biting tough tissue or bone), curettes (scoop- or loop-shaped ends for scraping), and trocars used with cannulas (hollow tubes allowing fluid/gas passage or instrument access).
- Sterile processing technicians use medical and surgical terminology to identify instruments and assemble sets according to tray assembly lists, manufacturers' instructions for use, and facility policy during cleaning, decontamination, inspection, assembly, packaging, sterilization, and storage.
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