Ntau cov kev tshawb fawb tau sib txheeb qhov ntsuas nrog GA txog li 20 lub lis piam, 1 – 6 , 15–20 nrog ob peb qhov kev tshawb fawb hais txog qhov ntsuas tom qab 20 lub lis piam. Tag nrho cov kev tshawb fawb no xaus lus tias nuchal fold thickness nce nrog GA
Puas nuchal translucency nce nrog lub hnub nyoog gestational?
Qhov tshwm sim: Nuchal translucency ntsuas varied considerably nrog lub hnub nyoog gestational; qhov kev hloov pauv no tau ua raws li tus qauv tshwj xeeb ntawm fetus. Hauv 94% ntawm cov neeg mob, peb tau pom qhov nce ntxiv los ntawm qhov txo qis hauv kev ntsuas qhov ntsuas tsis zoo.
Nuchal fold txhais li cas?
Nuchal quav yog ib qho quav ntawm daim tawv nqaij pom ntawm sab nraub qaum ntawm tus menyuam hauv plab thaum lub sijhawm thib ob ntawm cev xeeb tub. Nce thickness ntawm lub nuchal quav yog tus cim mos cuam tshuam nrog ntau yam kev tsis sib haum xeeb ntawm tus menyuam hauv plab, thiab ntsuas ntawm lub sijhawm ob peb lub hlis twg ultrasound.
Ntau npaum li cas yog qhov tuab nuchal quav?
Raws li cov ntawv tshaj tawm qhia txog kev tshuaj ntsuam xyuas menyuam hauv plab uas tau luam tawm los ntawm American Congress of Obstetricians thiab Gynecologists, qhov yuav piv (LR) rau thickened nuchal quav (TNF) yog 11 txog 18.6.
Puas yog cov tuab tuab tuab ib txwm txhais tau tias yog Down syndrome?
Ntau tus me nyuam noj qab nyob zoo muaj tuab nuchal quav. Txawm li cas los xij, muaj feem ntau dua rau Down syndrome lossis lwm yam kev mob chromosome thaum lub nuchal quav tuab. Tej zaum kuj yuav muaj feem ntau dua rau cov kab mob uas tsis tshua muaj caj ces.
