I-KTR imele ubukhulu be-coccyx-parietal, kwaye kubalulekile kwi- trimester yokuqala yokukhulelwa ukuchonga ngokuchanekileyo ixesha lokukhulelwa kwaye, ngenxa yoko, ukukhawuleza kwenkqubo yokukhula komntwana. Iphutha ekumiseni umhla wokugqibela we-KTR ngumhla owodwa ngosuku, kwiimeko ezingaqhelekanga - iintsuku ezi-3.
I-CTE ye-fetus ilinganiselwa njani?
Isilinganiso seKTP senziwa ngexesha le-ultrasound ehleliweyo. Kule meko, i-uterus ichongwa kwiiplanethi ezahlukeneyo, emva koko i-indicator enkulu ngobude bomntwana ikhethiweyo. Le yilathisi ebonwa yinyani kweli xesha. Nangona kunjalo, kufuneka ikhunjulwe ingqondo yokuba i-embryo iya kukhula enye i-millimeter ngosuku olulandelayo.
Kutheni uhlolisisa i-CTE ye-fetus yeveki?
I-CTF ye-embryo ivumela ukulandelela ukuphuhliswa kwayo ngeiveki kwaye ukuxilonga ukuphambuka ngexesha. Ngokumalunga nokuphambukiswa kuthetha, xa iiparitha eziqhelekileyo i-KTR yesisu ihamba ngokungaqhelekanga kwimveli.
Kwiiveki eziyi-10-12 i-ultrasound yokuqala eyenzelweyo, eyenziwa ukuphuhliswa komntwana, umsebenzi wentliziyo yakhe, isondo somntwana sizimisele. Olu phofu luchaza ubude bokukhulelwa ngokulinganisa ubungakanani bomntwana kwiimitha.
Ukusebenzisa iziphumo zeetafile ze-CTF ye-fetal, umntu unokugweba ngeeveki ukuphuhliswa okuqhelekileyo komntwana kwi-trimester yokuqala yokukhulelwa, ekubeni ukulinganisa okuqhelekileyo kwimizuzu yokukhulelwa kuboniswe kwitafile (etafileni).
Kwitheyibhile enikeziweyo ye-KTP yomntwana ongabonayo unokubona ukuba ama-indices ayatholakala kuphela kwiiveki ezingama-13. Inyaniso kukuba ngeli xesha ukuya kwiiveki ezingama-13 ukuba ezi nkcukacha zibonisa kakhulu. Umlinganiselo wokugqibela we-CTF we-fetus ungenziwa kwiiveki eziyi-15. Emva kweeveki ezili-16, i-CTE yomntwana ayihloliswanga, kuba ezinye iimpawu ziya kuqala.
Kucetyiswa ukuba wenze uvavanyo lwe-CTE ngexesha leeveki ezi-11 ukuya kwe-12-kwangaphambili le nkqubo iyenziwe, ngokukhawuleza umbuzo uza kulungiswa ngokubonakala okanye ukungabikho kweentlungu zomntwana. Kwaye i-trimester yokuqala ifanelekile kule nto.
Ukunciphisa ixabiso le-KTR kuyimfuneko ugqirha, ekubeni kunzima ukuzama ukuqonda konke ukuhlakanipha kwalolu hlobo ngokuzimeleyo. Omnye unokubona ngokucacileyo-ukuya kwiiveki eziyi-12, i-CTE yemfusus iyanda ngo-1 mm ngosuku, kwaye iqala ngeveki 13 - ngo-2-2.5 mm. Oku kuthetha ukuba umntwana uqala ukukhula ngenkuthalo, njengoko zonke iinkqubo zakhe kunye nezitho zakhe zenziwa ngokupheleleyo.
Ukuqulunqwa kweenkcukacha ze-KTR ngeveki
Kwixesha leiveki ezingama-6, i-KTR yesisu iphakathi kwe-7 ne-9 mm. Ekuqaleni kweveki yesi-7, i-CTR yesisu ikhuphukela kwi-10-15 mm. Kwiiveki ezili-10, i-CTE yomntwana i-31-39 mm. Kwaye kwiiveki ezi-12 ukuya kwe-13 ukuya kweye-13, eli lathisi liyakhula ukuya kuma-60-80 mm.
I-CT ye-fetus kwiiveki ezili-14 i malunga ne-86-90 mm. Kwaye sele sele sele iiveki eziyi-16-17, i-CTE yomntwana engasakwazi ukulinganisa. Esi sibonakaliso sithatyathwa ngamanye, iimpawu ezibalulekileyo kule nqanaba.
Kutheni ngokuqinisekileyo ukususela kwisithsaba ukuya kumsila?
I-trimester yokuqala yokuqala yonyana ilinganiswa ukusuka kwisithsaba ukuya kumsila. Ngenye indlela, kunzima ukulinganisa ngenxa yesimo sayo ngaphakathi kwesibeleko. "Unokwenene", ukuba ndingathetha njalo. Ewe, kunye nobukhulu bemilenze kusebancinci. Kamva kamva, uya kulungisa umncinci kwaye umlinganiselo wakhe uya kwenzeka ukusuka phezulu ukuya kwiintendele.
Kodwa nangona emva kokuba imilenze yeepod ikhule ekude kwayo, kuya kuba nzima ukulinganisa umntwana ngokukhula ngokugcwele, kuba imilenze iyaqhubeka igobile. Ubude obupheleleyo bomntwana bufumaneka kuphela ngokufaka ixabiso lemilinganiselo eyahlukileyo eyahlukileyo ukusuka kwisithsaba ukuya kwi-coccyx, ithanga kunye ne-shin.
Kodwa oogqirha abazenzeli oku, bachaza yonke into kwaye ngokwale siseko basekela izigqibo zabo ekuphuhliseni umntwana. Iziphumo ezilandelelanayo yintsimi yoomama abafuna ukuziqhayisa ngokukhula okupheleleyo komntwana wabo.