Carbon dioxide

An arterial blood gas (ABG) test measures the amount of oxygen and carbon dioxide (CO2) in a sample of your blood. The blood oxygen measurement shows how well your lungs move oxygen from the air into your blood when you breathe in. The carbon dioxide measurement shows how well your lungs remove carbon dioxide from your blood when you breathe out.

Source: MedlinePlus, U.S. National Library of Medicine

Normal range

Result tiers from clinical guidelines, not a single normal band.

Source	Sex	Age	Range
American Board of Internal Medicine (Laboratory Test Reference Ranges)	All	all ages	42–53 mm Hg
American Board of Internal Medicine (Laboratory Test Reference Ranges)	All	all ages	38–42 mm Hg

What an abnormal result can be associated with

A high result: Hypercapnia
A low result: Hypocapnia

Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis: only a clinician can interpret your result in context.

details

Sample: Whole blood · LOINC
Code: LOINC 11557-6 · mm Hg
Also known as: CO2, Carbon dioxide, Carbonic anhydride, PCO2, Partial pressure

See your own Carbon dioxide Add a lab report and it is drawn against your lab's range, over time. Upload a Blood Test