gram
Meaning of gram: A gram is a small metric unit of mass, widely used in clinical medicine to measure medication doses, body substances, and laboratory quantities.
Definition of gram
A gram is a unit of mass in the metric system, defined as one thousandth of a kilogram. It is one of the base units used throughout science and medicine for describing the weight of small quantities of a substance.
In clinical practice, the gram and its smaller subdivisions, such as the milligram and microgram, are used to express medication doses, the mass of substances measured in laboratory testing, and quantities described in nutrition and research. Many medications are dosed in milligrams because the effective amount is much smaller than a full gram.
Because dosing errors can occur when units are misread or mixed up, the specific unit attached to a quantity, whether gram, milligram, or microgram, is a critical part of any medication order or laboratory result.
Used in a sentence
The medication order specified a dose in milligrams rather than grams to avoid ambiguity.
Good to know
Confusing milligrams with grams, or micrograms with milligrams, represents a thousand-fold error and is a recognized source of medication dosing mistakes, which is why the unit is always checked alongside the number.