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Home  Medicine articles Nasal cannula
Nasal cannula
The nasal cannula is a device used in the hospital
or at home to delivery supplemental oxygen to a patient or person
in need of extra oxygen. This device is a plastic tube which
fits around the head of a person and a set of two prongs which
are placed in the nose or nares of the person. These prongs
are where the oxygen flows out of. To get oxygen through the
nasal cannula it has to be hooked up to a oxygen tank, portable
oxygen generator, or to a wall connection in a hospital via
a flowmeter. The nasal cannula can have a flow which ranges
from 1 liters per minute to 6 liters per minute. There are also
infant or neonatal nasal cannulas which use flows of less than
a liter per minute, these also have smaller prongs. The oxygen
percentage ranges from 24% oxygen to 35% approximately.
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