hypercapnia vs hypercarbia

hypercapnia and hypercarbia both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypercapnia	Yes	No	No	No
hypercarbia	Yes	No	No	No

As nouns, hypercapnia and hypercarbia are synonyms defined as:

hypercapnia and hypercarbia: the physical condition of having the presence of an abnormally high level of carbon dioxide in the circulating blood

hypercapnia (noun)	hypercarbia (noun)
the physical condition of having the presence of an abnormally high level of carbon dioxide in the circulating blood	the physical condition of having the presence of an abnormally high level of carbon dioxide in the circulating blood