Glossary

Medical Assistant Terms & Vocabulary

15 essential medical assistant terms with plain-English definitions: the vocabulary you’ll hear in training and on day one.

Updated By the Career Education Institute Curriculum Team
Key medical assistant vocabulary

These 15 terms come up constantly in medical assistant training, on the job and in interviews. Knowing them helps you follow instructions, document accurately and sound prepared.

Aseptic technique
Practices that prevent contamination by microorganisms during procedures.
Chief complaint (CC)
The main reason the patient is being seen, recorded in the patient’s own words when possible.
CPT code
A five-digit code that describes a medical service or procedure for billing.
EHR
Electronic health record: the digital chart that stores a patient’s history, medications, notes and results.
HIPAA
Federal law that protects the privacy and security of patients’ health information.
Intramuscular (IM) injection
A shot delivered into muscle, commonly the deltoid or vastus lateralis.
Point-of-care testing (POCT)
Simple lab tests done in the clinic, such as glucose, rapid strep or urine dipstick.
Prior authorization
Approval an insurer requires before it will cover certain services or medications.
Rooming
Bringing a patient from the waiting area to an exam room and preparing them for the provider.
Standard precautions
Infection-control practices used with every patient, such as hand hygiene and gloves.
Subcutaneous (SubQ) injection
A shot delivered into the fatty tissue just under the skin.
Triage
Sorting patients by urgency so the most serious needs are handled first.
Two patient identifiers
Two pieces of information, usually full name and date of birth, used to confirm identity before any procedure.
Venipuncture
Puncturing a vein to collect blood.
Vital signs
Core measurements of body function: temperature, pulse, respirations and blood pressure, often plus oxygen saturation and pain level.

Practice these terms

Test yourself with the free Medical Assistant practice test: it includes vocabulary questions built from this list. For a complete course, see Medical Assistant training.

Browse terms from every career in our career glossary.

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