hypotensive vs patient

hypotensive and patient both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypotensive	Yes	Yes	No	No
patient	Yes	Yes	No	No

As nouns, patient is a hypernym of hypotensive; that is, patient is a word with a broader meaning than hypotensive:

hypotensive (noun)	patient (noun)
a person who has abnormally low blood pressure	the semantic role of an entity that is not the agent but is directly involved in or affected by the happening denoted by the verb in the clause
	a person who requires medical care

hypotensive (adjective)	patient (adjective)
having abnormally low blood pressure	enduring trying circumstances with even temper or characterized by such endurance