What Does LR Mean in Medical Terms?

LR stands for lactated Ringer's. Intravenous fluid containing salts and lactate.

Where you will see LR

You will most often see LR in medication orders and prescriptions, operation notes and surgical ward charts.

Example

A medication order might be written with “LR” as shorthand for lactated Ringer's.

Related abbreviations

• 3% saline — three percent saline (hypertonic)
• 5-FU — fluorouracil
• 6-MP — mercaptopurine
• 6-TG — thioguanine
• 7+3 — seven plus three induction
• 90-90 traction — ninety-ninety traction (femur)
• a.c. — ante cibum (before meals)
• AAA — abdominal aortic aneurysm

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