Duban dan tayi ne wani ɓangare na daidaitattun zinariya don gwajin ciki kuma yana da mummunar cutar ga mahaifiyar da tayin. Yana taimakawa wajen gane yiwuwar yiwuwar ci gaban tayi, nakasar cututtuka (misali, Down ta cuta) kuma yana ba da izini ga katsewa irin wannan ciki a tsawon tsawon makonni 12. A wasu matakai na baya, nunawa a lokacin daukar ciki an kiyasta don samun ƙarin tayi, yadda ya dace tare da girmanta, shekaru na shekaru, da kuma yanayin ciwon ciki.
Na farko da zazzabi duban dan tayi a ciki
Na'urar farko ta duban dan tayi a yayin daukar ciki an yi shi a lokacin makonni 9-13. Yana da matukar mahimmanci hanyar ganewar asali, wanda zai sa ya yiwu ya ware bayyanar mummunan lahani a cikin tayin. A wannan lokacin na ciki, yawancin kwayoyin halitta da tsarin jiki na tayin sun kasance a bayyane. A farkon duban dan tayi, za ka iya ganin wadannan:
- yawan 'ya'yan itatuwa, wurin abin da aka haɗe da ƙwayar ƙwayar cuta, bincikar yanayin ƙwayoyin amniotic. Idan akwai nauyin daukar ciki da yawa ya kula da yawan adadin placentas (a cikin tagwaye akwai mahaifa guda ɗaya, a cikin tagwaye raba);
- ƙayyade shekarun haihuwa da kwanan wata da aka sa ran;
- don tantance daidaituwa daga cikin mahaifa da kuma samuwar igiya;
- don bayyana alamun nakasar chromosomal. Tare da duban dan tayi na tayin tare da ciwo na Down, zaka iya ganin: ɗakunan da ba su dace ba a kasusuwan kasusuwa, kara yawan haske daga cikin sararin samaniya, canji a cikin jini ta hanyar tabarar tricuspid).
- ƙididdigar yawan malformations na tayin;
- wasu pathological yanayi (barazana na zubar da ciki, alamun placental abruption).
Na farko na jarrabawar tayin, duk da aiwatar da shi sosai, ba zai iya bayar da garantin 100% na rashin ciwo a cikin tayin saboda ƙananan ƙananan matakan.
Na biyu na duban dan tayi na mata masu juna biyu
Anyi amfani da duban dan tayi na tayin a cikin makon 19-23 na ciki kuma ya ba da cikakken cikakkiyar kimantawa game da daidaituwa na gabobin tayi. A lokacin zanawa na biyu na daukar hoto a lokacin daukar ciki, zaka iya:
- ƙayyade ainihin lokacin ciki;
- ƙaddarar matsayi da kuma halin yanzu na tayin;
- ƙayyade jima'i na tayin;
- tantance wuri da yanayin layin ƙwayar;
- ƙayyade adadin ruwan amniotic;
- don ƙayyade jihar cervix.
Duban dan tayi na kwakwalwa na tayi zai ba da damar kawar da abubuwan da ke ci gaba, don ganin kwakwalwa na kwakwalwa da kwakwalwarsu, kwakwalwar kwakwalwa da fossa. Ana yin sakonni na kwakwalwa na tayin a hankali a cikin jagorancin craniocaudal (daga sama zuwa sama).
Na uku na duban dan tayi don daukar ciki
An yi nazari na uku na duban dan tayi don yin ciki a makonni 32-34. Tare da duban dan tayi, dopplerography da carotocography aka yi, wanda ya bada damar tantance halin tayi na tayin da kuma yanayin da mahaifa. Tare da taimakon duban dan tayi yana yiwuwa:
- don bayyana lahani na tayin;
- don ƙayyade matsayi da gabatar da tayin, yiwuwar shigar da igiya;
- don ƙididdige ƙimar da aka auna da girma da tayin;
- don tantance daidaituwa na tayin zuwa lokacin gestation;
- Yi la'akari da tsarin aiki na mahaifa da tsarinta (nau'in, kauri, balaga);
- auna adadin ruwan amniotic;
- Yi la'akari da yanayin cervix;
- a cikin matan da suke da wannan sashe a cikin tarihin, bincika tsawan wulakan a cikin mahaifa.
Bayan na uku na duban dan tayi a cikin mace mai ciki tana ƙaddamar da samfurori na bayarwa.
Don haka, munyi la'akari da daya daga cikin hanyoyin yadda za a yi nunawa a yayin daukar ciki. Kamar yadda kake gani, duban dan tayi wata hanya ce mai ban mamaki don nuna alamun ilimin lissafi a cikin kowane nau'i na ciki, yana ba da damar tantance yanayin ciwon ciki da tayin, da kuma tabbatar da tsawon lokaci na ciki.