What Does OG Mean in Medical Terms?

OG stands for orogastric. Through the mouth into the stomach, as a tube.

Where you will see OG

You will most often see OG in nursing notes, care plans and handovers, digestive health notes and endoscopy reports.

Example

A chart note might use “OG” as shorthand for orogastric when documenting a patient's care.

Related abbreviations

• 1:1 — one-to-one observation
• 2g Na diet — two-gram sodium diet
• 4-point restraints — four-point restraints
• 5'-NT — 5-prime nucleotidase
• 5-HIAA — 5-hydroxyindoleacetic acid
• A&O — alert and oriented
• A&O x4 — alert and oriented times four (person place time situation)
• A-line — A-line (arterial line shorthand)

Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.