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Quantity (Medicine)

Quantity (/ˈkwɒntɪti/), in the context of medicine, refers to the amount or proportion of a medical substance or treatment. The term is derived from the Latin quantitas, meaning "how much".

Usage in Medicine

In medicine, quantity is a crucial aspect in various areas such as dosage, prescription, medical imaging, and medical tests.


Dosage refers to the size or frequency of a dose of a medicine or drug. The quantity of the dosage is determined by the healthcare professional based on various factors such as the patient's age, weight, and overall health condition.


In a Prescription, the quantity refers to the amount of medication that the pharmacist is instructed to dispense. This is usually written in numerical form and is followed by instructions on how often and when the medication should be taken.

Medical Imaging

In Medical Imaging, quantity can refer to the amount of radiation exposure or the number of images taken. Healthcare professionals must balance the need for diagnostic information with the goal of minimizing patient exposure to radiation.

Medical Tests

In medical tests, quantity often refers to the amount of a particular substance in a sample. For example, a blood test might measure the quantity of a certain type of cell or chemical in the blood.

Related Terms

See Also

External links


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