Ho tla hlokahala hore u fane ka mali ho tsoa mothapong ebe o tla ho ea ho buisana ka ho hlahloba ho hlahlojoa ha likokoana-hloko tse entsoeng ka 2 trimester, haholo-holo tleliniking moo lipatlisiso li entsoeng teng, hobane liphello li fapana ka li-laboratori tse fapaneng.
Hase bohle ba tsebang hore ho hlahloba lik'hemik'hemik'hale ka li-trimester ea bobeli ke ka boithatelo 'me ngaka e ke ke ea qobella mosali ea moimana hore a tsamaee le eona haeba a sa nahane hore ho hlokahala. Ho phaella moo, tlhahlobo ea boraro bakeng sa lihomone e lefshoa.
Tlhahlobo ea bobeli ea trimester e bolela'ng?
E le hore u lemohe ho se tloaelehe ha khōlo ea fetallo, tlhahlobo ea boraro e etsoa, e leng, mali a nkoa bakeng sa lihomone tse joalo:
- Alfafetorothein.
- Human chorionic gonadotropin.
- Estriol ea mahala.
Kaha tlhahlobo ena e na le likarolo tse tharo, e ne e bitsoa tharo, le hoja li-laboratories tse ling li hlahloba lintlha tse peli feela - AFP le hCG.
Mekhoa ea ho hlahloba lik'hemik'hale tsa likokoana-hloko ea 2 trimester
Joalokaha ho se ho boletsoe, li-laboratories tse fapaneng li na le litafole tse fapaneng tsa litekanyetso, kahoo hoa utloahala ho bua feela ka mekhoa e fapaneng e tsoang ho lipalo tsena. Ka hona, keketseho ea 2 MoH hCG e bontša bongata kapa Down syndrome, ho fokotseha ha 0.5 MoM ho bontša kotsi ea ho fokotsa mathata a mangata (Edwards syndrome).
Tekanyo ea AFP bakeng sa nako ea libeke tse 18-20 ke li-unit tse 15-100, kapa 0.5-2 'Mè. Haeba ho e-na le ho kheloha ho tloaelehileng ho tataiso e nyenyane, joale ho na le kotsi ea ho hlahisa syndromes ea Down syndrome le Edwards.
Norm ea estriol e sa lefelloeng - ho tloha ho 0.5 ho ea ho 2 MoM, ho fapoha ho tsoa ho seo ho se bolelang:
- tekanyo e tlaase - li-syndromes tsa Edwards le Down;
- e phahameng-e ngata-litholoana, lesea le leholo, sebete le lefu la liphio.
Tekanyo ea estriol e susumetsoa ke ho kenngoa ha meriana, haholo-holo lihomone le lithibela-mafu. Hoa hlokahala hore u lemose ka eona pele u hlahloba.