Kuya kubakho ukunikela ngegazi kwi-vein uze udibaniselwano ngokucacisa ukuhlolwa kwe-biochemical eqhutywe kwi-trimester yesi-2, ngokuchanekileyo kwikliniki apho uhlalutyo lwenziwe khona, kuba iziphumo ziyahlukahluka kwii-laboratories ezahlukeneyo.
Akuyena wonke umntu owaziyo ukuba ukuhlolwa kwezinto ezinokwemvelo kwi-trimester yesi-2 ngokuzithandela kwaye ugqirha akanako ukunyanzela umfazi okhulelweyo ukuba angene kuyo ukuba akayicingi ukuba iyimfuneko. Ukongezelela, ukuhlolwa kathathu kwama-hormone kuhlawulwa.
Ukubhekisisa kwesiqingatha sesibini kuthetha ntoni?
Ukuze ufumane ukungaqhelekanga kokuphuhliswa komntwana, uvavanyo lwesithathu luqhutyelwa, oko kukuthi, igazi lithathwa kwi-hormones enjalo:
- Alfafetorothein.
- I-chorionic gonadotropin.
- Estriol yamahhala.
Ekubeni uvavanyo lunezixhobo ezintathu, luthiwa kathathu, nangona ezinye ielabhutrks zihlola iimiqondiso ezimbini kuphela - i-AFP kunye ne-hCG.
Imilinganiselo yokuhlola i-biochemical ye-2 trimester
Njengoko sele kuthethwe ngazo, ii-laboratories ezahlukeneyo zineetafile ezahlukeneyo zeemigangatho, ngoko ke kunengqiqo ukuthetha kuphela malunga nokuphambuka kwala manani. Ngaloo ndlela, ukwanda kwe-2 MoH hCG kubonisa ukuphindaphinda okanye i-Down syndrome, ukuhla kwe-0.5 MoM kubonisa umngcipheko weentlobo ezininzi (i-Edwards syndrome).
Izinga le-AFP kwixesha leeveki ezingama-18 ukuya kuma-15-100, okanye 0.5-2. Ukuba kukho ukuphambuka ukusuka kwisiqhelo kwinqanaba elincinci, ke kukho umngcipheko wokuphuhlisa i-Down syndrome ne-Edwards syndromes.
I-Norm ye-estriol yamahhala-ukusuka kwi-0.5 ukuya kwi-2 MoM, ukuphambukiswa okuvela kuyo oku kuthetha ukuba:
- izinga eliphantsi - i-syndromes ye-Edwards ne-Down;
- Ukuphakanyiswa - izityalo ezininzi, isisu esikhulu, isibindi nesifo sesifo.
Iqondo le-estriol lithonyelwa kukungena kwamachiza, ikakhulukazi amahomoni kunye namayeza. Kubalulekile ukulumkisa malunga nayo ngaphambi kokuba uhlalutye.