Nanogram
Nanogram
A Nanogram (pronounced: /ˈnanəˌɡram/) is a unit of mass in the International System of Units (SI). The term is derived from the Greek words nano, meaning "dwarf", and gram, meaning "something written". It is equal to one billionth (1/1,000,000,000) of a gram, or one thousandth of a microgram.
Usage
In the field of medicine, nanograms are often used to measure tiny amounts of substances such as hormones, vitamins, medications, and other biological molecules. For example, the concentration of a drug in the blood may be measured in nanograms per milliliter (ng/mL).
Related Terms
- Microgram: A unit of mass equal to one millionth of a gram.
- Milligram: A unit of mass equal to one thousandth of a gram.
- Gram: A unit of mass in the metric system.
- Kilogram: The base unit of mass in the International System of Units (SI).
See Also
External links
- Medical encyclopedia article on Nanogram
- Wikipedia's article - Nanogram
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