Oxygen therapy

Oxygen therapy, also called supplemental oxygen, is when oxygen gas (O₂) is used for medical treatment by giving the gas to the patient for inhalation.^[1] It can be used for ilnesses like hypoxia, carbon monoxide toxicity, and cluster headaches.^[2] It can be used over a long time for people who suffer with illnesses that lower oxygen levels in the blood like COPD and cystic fibrosis.^[3] It can be given in a few different ways such as through a nasal cannula, face mask, or inside a hyperbaric chamber.^[4][5][6] Oxygen levels need to be high enough for respiration to keep a patient healthy and for normal cell metabolism.^[7][8]

Oxygen therapy

A person wearing a simple face mask
Clinical data
Other names	supplemental oxygen, enriched air
AHFS/Drugs.com	FDA Professional Drug Information
Routes of administration	inhaled
Drug class	medical gas
ATC code	V03AN01 (WHO)
Identifiers
CAS Number	7782-44-7
ChemSpider	none
UNII	S88TT14065
Chemical and physical data
Formula	O2