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Microgram
 
 
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In the metric system
Metric system

The metric system is an international decimalised systems of measurement, founded by France in 1791, that is the common system of Unit of measurement used by most of the world....
, a microgram (µg or sometimes ug) is 1/1,000,000 of a gram
Gram

The gram , ; symbol g, is a Physical unit of mass.Originally defined as "the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre, and at the temperature of melting ice" , a gram is now defined as one one-thousandth of the SI base unit, the kilogram, or Scientific notation kg, which itself is...
 (1 × 10–6), or 1/1000 of a milligram, is one of the smallest units of weight/mass commonly used. The abbreviation µg is often used in scientific literature, but JCAHO recommends that hospitals do not use this abbreviation in handwritten orders due to the risk that the Greek letter µ
Mu (letter)

Mu is the 12th letter of the Greek alphabet. In the system of Greek numerals it has a value of 40. Mu was derived from the Egyptian hieroglyphic symbol for water which had been simplified by the Phoenicians and named after their word for water, to become Mem ....
 could be mistaken for an m, resulting in a thousandfold overdose.






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Encyclopedia


In the metric system
Metric system

The metric system is an international decimalised systems of measurement, founded by France in 1791, that is the common system of Unit of measurement used by most of the world....
, a microgram (µg or sometimes ug) is 1/1,000,000 of a gram
Gram

The gram , ; symbol g, is a Physical unit of mass.Originally defined as "the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre, and at the temperature of melting ice" , a gram is now defined as one one-thousandth of the SI base unit, the kilogram, or Scientific notation kg, which itself is...
 (1 × 10–6), or 1/1000 of a milligram, is one of the smallest units of weight/mass commonly used. The abbreviation µg is often used in scientific literature, but JCAHO recommends that hospitals do not use this abbreviation in handwritten orders due to the risk that the Greek letter µ
Mu (letter)

Mu is the 12th letter of the Greek alphabet. In the system of Greek numerals it has a value of 40. Mu was derived from the Egyptian hieroglyphic symbol for water which had been simplified by the Phoenicians and named after their word for water, to become Mem ....
 could be mistaken for an m, resulting in a thousandfold overdose. The abbreviation mcg is recommended instead.

See also

  • SI units