GUIDE WITH VERIFIED CORRECT
ANSWERS (HIGH ACCURACY &
UPDATED 2025/2026)
CEA iMeaning i& iIndications i- icorrect ianswer-CEA-
carcinoembryonic iantigen i(tumor imarker); ithisFis ia iglycoproteins ifound iin iembryonic ientodermal iepithel
iium
CEA iFunctions-
it iprotects icancer icells ifrom icell ideath, iinhibits imacrophages, iand iupregulates icell iadhesion ifor imetastas iis
Indications: itest ipatients iif isigns/symptoms iof icolorectal icancer, ito istage icancer, ior iobserve iresponse ito ic
iancer itreatments
High iCEA iResults iInterpretation i- icorrect ianswer--abnormally ihigh iCEA iresults iis inot ienough ito idiagnose
-
it ican ibe ihigh idue ito iinflammatory idiseases, icirrhosis, icolonic ipolyps, iexposure ito ianimal iantigens i(bites),
icigarette/tobacco iuse
CEA iReference iRange i- icorrect ianswer-Non-smoking inormal irange: i0-3 ing/mL iSmoking
i normal irange: i0-5 ing/mL