health check vs scrutiny

health check and scrutiny both are nouns.

Word	Noun	Adjective	Verb	Adverb
health check	Yes	No	No	No
scrutiny	Yes	No	No	No

As nouns, scrutiny is a hypernym of health check; that is, scrutiny is a word with a broader meaning than health check:

health check: a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person
scrutiny: the act of examining something closely (as for mistakes)

Other hypernyms of health check include examination.

health check (noun)	scrutiny (noun)
a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person	the act of examining something closely (as for mistakes)
	a prolonged intense look