Iveki elinamashumi amabini lixesha elikhethekileyo, elibalulekileyo lokukhulelwa. Le veki, abaninzi abasetyhini baqala ukunyuka kwengane. Uye waphelela isiqingatha sokukhulelwa: emva kwesifo sokutywala, inqanaba eliyingozi kakhulu lokuphuhliswa komntwana, wokuqala wase-US. Ngeveki ye-20, umama ozayo unokunikwa uvavanyo lwesibini lwe-ultrasound ngexesha lokukhulelwa . Ingqwalasela ngokukodwa ihlawulwa kwi-fetometry (iipameterry ezisisiseko) ze-fetus kwiiveki ezingama-20, kuba ubukhulu bomntwana obuvumela umntu ukuba acacise ukuphambuka kophuhliso lwayo.
Iimpawu ze-Fetal ngeveki 20
Ngokungafani neyokuqala kwe-ultrasound kwiiveki eziyi-10-12, i-ultrasound ye-fetus yeveki ezingama-20 yinto enolwazi olungakumbi: kungekhona nje intlawulo yenhliziyo kunye ne-coccyx-parietal size (KTP) yengane ibhaliwe, kodwa ubukhulu, ubunzima bentloko, intloko nesisu , ububanzi besifuba, kunye nobude bethanga, umlenze ongezantsi, iphambili kunye nehlombe.
Kutheni sifuna ukulinganisa okunjalo? Ubungakanani bentsholongwane kwiiveki ezingama-20 zokukhulelwa kunceda umgqirha-gynecologist ukuba afake izigqibo malunga nesantya sokukhula nophuhliso lomntwana, ukufumanisa i-pathologies enokwenzeka kwaye uthathe amanyathelo afanelekileyo ngexesha.
Nangona kunjalo, ukuphambuka kwamancinci ekukhuleni nasekunyameni komntwana kwisithuba seveki ezingama-20 akufanele kube sisizathu sokwesaba. Sonke sahluke: sinyanzele kwaye sisondliwe kakuhle, sinemilenze ende okanye emfutshane kunye neengalo, ngokujikeleza okanye entloko. Zonke iintlukwano zibekwe kwiqondo lemfuza, ngoko akumangalisi ukuba iziqhamo ziyahlukana. Ukongezelela, ukuphuhliswa kwe-intrauterine kudla ngokuphindaphindiweyo, kwaye kwiimeko ezininzi abantwana bafumana imilinganiselo. Kukho nokuba kukho iimpazamo ekumiseni ixesha lokunyuka kwexesha lokugqibela.
Enye into apho ukuphambuka kwimiqathango engaphezulu kweeveki ezimbini zeveki. Ngokomzekelo, i-fetus yeeveki ezingama-20 ezise-parameters eziphambili ziyahluka kancinane kwintsana e-17-18. Kule meko, ukulibaziseka ekuphuhlisweni komntwana kuya kwenzeka ngokwenene, oko kuthetha ukuba uviwo olongezelelweyo kunye nonyango kuya kufuneka.
I-Fetometry ye-fetus iiveki ezingama-20 - iqhelekileyo
Ziziphi iiparitha eziqhelekileyo zefesti ngeveki 20? I-KTP (okanye ukukhula komntwana) kumaviki angama-20 ngokuqhelekileyo i-24-25 cm, kunye nobunzima-283-285 g. I-BDP kwiiveki ezingama-20 iyahluka phakathi kwe-43-53 mm. I-circumference yekhanda iya kuba yi-154-186 mm, kunye nesithintelo esiswini-124-164 mm. Ubungakanani besifuba kufuneka ngokuqhelekileyo kube ngu-46-48 mm.
Ubude bezitho zomntwana zitholakala ngobungakanani bamathambo abulalayo:
- i-femur - 29-37 mm;
- i-humerus - 26-34 mm;
- amathambo - 22-29 mm;
- amathambo omlenze ophantsi - 26-34 mm.
Iveki ye-20 yokukhulelwa - uphuhliso lwama-fetal
Ngokubanzi, ngeveki lama-20 onke amalungu omntwana ayakhelwe ngokupheleleyo, ukukhula nokuphuhliswa kwazo kuyaqhubeka.
Kwiiveki ezingama-20, ekugqibeleni umntwana uvula amehlo akhe, kwaye unako ukucinga ngokucacileyo. Ngeli xesha, isiqhamo sinomdla ngokukhawuleza iminwe kwaye siva kakuhle. Ukususela kwiveki yama-20 yokukhulelwa, oogqirha batusa ukuba baqale ukuthetha nomntwana. Usana luhamba ngokunyanisekileyo, kwaye abanye oomama sele bebazi imeko yezempilo kunye nokukhethwa kwenzalo yabo ngohlobo lwesimo sokunyuka kwe- fetal ngeveki 20 .