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What Does LEX Mean in Medical Terms?
LEX stands for cephalexin (chart shorthand). First-generation oral cephalosporin shorthand.
cephalexin (chart shorthand)
First-generation oral cephalosporin shorthand.
Where you will see LEX
You will most often see LEX in medication orders and prescriptions, microbiology results and infection-control notes.
Example
A medication order might be written with “LEX” as shorthand for cephalexin (chart shorthand).
Related abbreviations
- 14-3-3 — 14-3-3 protein (CSF)
- 3 Cs measles — three Cs of measles (cough coryza conjunctivitis)
- 3% saline — three percent saline (hypertonic)
- 5-FU — fluorouracil
- 6-MP — mercaptopurine
- 6-TG — thioguanine
- 7+3 — seven plus three induction
- a.c. — ante cibum (before meals)
Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.
Educational reference only. This guide is for learning and quick reference. Abbreviations vary between hospitals, countries and specialties, and some are discouraged because they can be misread. Always write and interpret orders using your own institution’s approved abbreviation list, and check anything unclear with the prescriber or your local policy.