Cov txheej txheem:
- Thaum twg aneuploidy tshwm sim?
- Kev kuaj mob aneuploidy li cas?
- Kev tshuaj ntsuam aneuploidy thaum cev xeeb tub yog dab tsi?
- Dab tsi yog thawj peb lub hlis twg ultrasound siv los ntsuas qhov kev pheej hmoo ntawm aneuploidy?
![Thaum twg tshuaj ntsuam aneuploidy tiav? Thaum twg tshuaj ntsuam aneuploidy tiav?](https://i.boatexistence.com/preview/questions/18697467-when-is-aneuploidy-screening-done-j.webp)
Video: Thaum twg tshuaj ntsuam aneuploidy tiav?
![Video: Thaum twg tshuaj ntsuam aneuploidy tiav? Video: Thaum twg tshuaj ntsuam aneuploidy tiav?](https://i.ytimg.com/vi/iOkrQwV6zXU/hqdefault.jpg)
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Vim tias kev mob plab fetal tuaj yeem cuam tshuam kev xeeb tub, txhua tus poj niam cev xeeb tub yuav tsum tau kuaj xyuas. Kev tshuaj xyuas thawj peb lub hlis twg ua ke tau ua nruab nrab ntawm 10 thiab 13 lub lis piam cev xeeb tubkuaj pom 82% txog 87% ntawm trisomy 21 (Down syndrome).
Thaum twg aneuploidy tshwm sim?
Aneuploidy originates thaum lub sijhawm faib cell thaum chromosomes tsis sib cais kom zoo ntawm ob lub hlwb (nondisjunction) Feem ntau ntawm aneuploidy hauv autosomes ua rau nchuav menyuam, thiab feem ntau tshwm sim ntxiv. autosomal chromosomes ntawm cov me nyuam yug los yog 21, 18 thiab 13.
Kev kuaj mob aneuploidy li cas?
txhawm rau txiav txim siab chromosomal aneuploidy, txoj hauv kev tshaj plaws yog txhawm rau suav tag nrho cov cfDNA fragments (fetal thiab leej niam) Yog tias feem pua ntawm cfDNA feem ntawm txhua tus chromosome yog raws li qhov xav tau, ces tus me nyuam hauv plab yuav txo qis kev pheej hmoo ntawm chromosomal mob (cov txiaj ntsig tsis zoo).
Kev tshuaj ntsuam aneuploidy thaum cev xeeb tub yog dab tsi?
Kev tshuaj xyuas los ntawm kev sib xyaw ntawm fetal nuchal translucency thiab niam txiv cov ntshav dawb-β-tib neeg chorionic gonadotrophin thiab cev xeeb tub-txo cov ntshav protein-A tuaj yeem txheeb xyuas txog 90% ntawm fetuses nrog trisomy 21thiab lwm yam aneuploidies loj rau qhov tsis tseeb-zoo tus nqi ntawm 5%.
Dab tsi yog thawj peb lub hlis twg ultrasound siv los ntsuas qhov kev pheej hmoo ntawm aneuploidy?
Kev tshuaj ntsuam xyuas thawj peb lub hlis twg ( NT ntsuas, PAPP-A, thiab hCG) yog qhov pom zoo, muaj txiaj ntsig zoo rau kev tshuaj xyuas fetal aneuploidy yog tias tus poj niam cev xeeb tub thaum ntxov (ua ntej 14. lub lis piam gestation).
Pom zoo:
Thaum twg thiab qhov twg siv cov ntawv sau npe thaum sau cov qauv tshuaj?
![Thaum twg thiab qhov twg siv cov ntawv sau npe thaum sau cov qauv tshuaj? Thaum twg thiab qhov twg siv cov ntawv sau npe thaum sau cov qauv tshuaj?](https://i.boatexistence.com/preview/questions/18699870-when-and-where-are-subscripts-used-when-writing-a-chemical-formula-j.webp)
Ib qho tshuaj formula yog ib qho kev qhia uas qhia cov ntsiab lus hauv ib qho kev sib txuas thiab cov txheeb ze ntawm cov ntsiab lus. Yog tias tsuas yog ib qho atom ntawm ib hom tshwj xeeb yog tam sim no, tsis muaj subscript siv. Rau atoms uas muaj ob lossis ntau dua ntawm ib hom tshwj xeeb ntawm atom tam sim no, ib daim ntawv sau npe sau tom qab lub cim rau lub atom Dab tsi yog cov ntawv sau npe siv rau hauv cov qauv tshuaj?
Leej twg yog tus kws tshuaj ntsuam kev nqis peev?
![Leej twg yog tus kws tshuaj ntsuam kev nqis peev? Leej twg yog tus kws tshuaj ntsuam kev nqis peev?](https://i.boatexistence.com/preview/questions/18728076-who-is-an-investment-analyst-j.webp)
Tus kws tshuaj ntsuam kev nqis peev yog tus kws tshaj lij nyiaj txiag nrog cov kws tshaj lij hauv kev tshuaj xyuas cov ntaub ntawv nyiaj txiag thiab kev nqis peev, feem ntau yog rau lub hom phiaj ntawm kev yuav, muag thiab tuav cov lus pom zoo rau kev nyab xeeb .
Vim li cas daim ntawv ntsuam xyuas yog kev soj ntsuam?
![Vim li cas daim ntawv ntsuam xyuas yog kev soj ntsuam? Vim li cas daim ntawv ntsuam xyuas yog kev soj ntsuam?](https://i.boatexistence.com/preview/good-answers/18731343-why-survey-is-observational-study.webp)
Surveys - Kev soj ntsuam yog ib daim ntawv ntawm kev soj ntsuam, vim cov kws tshawb fawb tsis cuam tshuam rau qhov tshwm simCov ntawv tshawb fawb txheeb cais sau cov ntaub ntawv los ntawm ib pawg qauv los kawm txog tag nrho cov pejxeem. Ib daim ntawv ntsuam xyuas yuav tsom rau cov kev xav lossis cov ntaub ntawv tseeb nyob ntawm lub hom phiaj ntawm txoj kev kawm .
Thaum twg yog kev soj ntsuam kev soj ntsuam?
![Thaum twg yog kev soj ntsuam kev soj ntsuam? Thaum twg yog kev soj ntsuam kev soj ntsuam?](https://i.boatexistence.com/preview/questions/18731351-when-is-observational-research-j.webp)
Kev soj ntsuam kev soj ntsuam tso cai rau tus kws tshawb fawb pom tias lawv cov kev kawm tiag tiag ua thaum ntsib nrog ntau yam kev xaiv lossis xwm txheej. Lub sij hawm yog hais txog kev kawm txog cov xwm txheej uas tsis yog kev sim uas tus cwj pwm tau soj ntsuam thiab sau tseg .
Yuav ua li cas thaum cov neeg ua tiav tsis tiav?
![Yuav ua li cas thaum cov neeg ua tiav tsis tiav? Yuav ua li cas thaum cov neeg ua tiav tsis tiav?](https://i.boatexistence.com/preview/questions/18767284-what-happens-when-perfectionists-fail-j.webp)
Kev tshawb fawb qhia tau tias qhov kev xav zoo tshaj plaws kwv yees teeb meem xws li kev nyuaj siab, kev ntxhov siab thiab kev ntxhov siab- txawm tias cov kws tshawb fawb tau tswj hwm qhov zoo li neuroticism. Qhov teeb meem loj dua, kev thuam tus kheej yuav ua rau muaj kev nyuaj siab tab sis cov tsos mob ntawd tuaj yeem ua rau nws tus kheej thuam tsis zoo, kaw qhov kev ntxhov siab .