NG
Abbreviation with 4 meanings
| Stands for | National Guard |
|---|---|
| Meanings | 4 |
| Categories | Military, Medical, Geography & Places, Units & Measurements |
| Also written | ng |
NG has four meanings. The most common are National Guard (military unit and organization) and Nasogastric (gastroenterology); it can also stand for Nigeria and Nanogram.
Meanings of NG at a glance
| # | NG stands for | Context |
|---|---|---|
| 1 | National Guard | Military › Military Unit and Organization |
| 2 | Nasogastric | Medical › Gastroenterology |
| 3 | Nigeria | Geography & Places › Country Code |
| 4 | Nanogram | Units & Measurements › Metric and SI Unit |
1. National Guard
Military · Military Unit and Organization Abbreviations
Reserve military force of the US Army and Air Force organized by state, territory and the District of Columbia. Guard units serve governors in state emergencies and can be federalized by the president for overseas deployments and national missions.
Example: The governor activated the NG to help with flood rescues along the river.
The Guard traces its lineage to the first militia regiments of the Massachusetts Bay Colony, organized on December 13, 1636. Guard members serve under state authority (Title 32 or state active duty) or federal authority (Title 10). Its two components are the Army National Guard and the Air National Guard.
2. Nasogastric
Medical · Gastroenterology Abbreviations
Describes a tube passed through the nose and esophagus into the stomach, used to decompress the stomach in bowel obstruction or ileus, to give feeds or medications, and to lavage the stomach. Placement for feeding must be confirmed, usually by chest X-ray, before use.
Example: NG tube to low intermittent suction, 600 mL bilious output overnight.
Often written NGT for nasogastric tube. Bedside pH testing of aspirate is used for confirmation in some countries, while auscultating an air bolus is considered unreliable. A nasojejunal (NJ) tube passes beyond the stomach for patients with gastroparesis or severe pancreatitis. Misplacement into the airway is a recognized never event in the UK when feeding begins.
3. Nigeria
Geography & Places · Country Code Abbreviations
Africa's most populous country, with more than 220 million people, Abuja as its capital since 1991 and Lagos as its commercial center. NGA is the alpha-3 code and the naira trades as NGN.
Example: Fintech apps in NG process millions of naira transfers each day.
Nigeria's film industry, Nollywood, is one of the world's largest by output. Niger is NE, a frequent mix-up. In texting NG means no good.
4. Nanogram (ng)
Units & Measurements · Metric and SI Unit Abbreviations
A billionth of a gram, used in laboratory measurements of hormones, drugs, tumor markers and toxins. Prostate-specific antigen, ferritin and vitamin D levels are reported in ng/mL in US labs.
Example: Her 25-hydroxyvitamin D level came back at 32 ng/mL.
To convert vitamin D results, multiply ng/mL by about 2.5 to get nmol/L, the unit used in the UK and much of Europe. Drinking-water limits for contaminants such as PFAS are set in nanograms per liter, which is equivalent to parts per trillion. In clinical shorthand, NG more often means nasogastric, as in an NG tube.
Related abbreviations
More military unit and organization abbreviations
- MoD – Ministry of Defence
- MSC – Military Sealift Command
- NAVAIR – Naval Air Systems Command
- NAVSEA – Naval Sea Systems Command
- NGB – National Guard Bureau
- NORAD – North American Aerospace Defense Command
- NORTHCOM – United States Northern Command
- NROTC – Naval Reserve Officers Training Corps
See all 126 military unit and organization abbreviations →
More gastroenterology abbreviations
- mt-sDNA – Multitarget stool DNA test
- N/V – Nausea and vomiting
- NAFLD – Nonalcoholic fatty liver disease
- NASH – Nonalcoholic steatohepatitis
- NVD – Nausea, vomiting and diarrhea
- OGD – Oesophagogastroduodenoscopy
- OLT – Orthotopic liver transplantation
- PBC – Primary biliary cholangitis
See all 85 gastroenterology abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.