Libeke tse mashome a mabeli ke nako e khethehileng, ea bohlokoa ea bokhachane. Beke ena, basali ba bangata ba nang le mekhoa ea boipheliso ba utloa mehato ea pele ea lesea. E fetisitse halofo ea bokhachane: ka morao ho toxicosis, mohato o kotsi ka ho fetisisa oa ntshetsopele ea lesea, lesea la pele la US. Ka beke ea bo20, 'mè oa ka moso a ka fuoa tlhahlobo ea bobeli ea ultrasound nakong ea bokhachane . Tlhokomelo e khethehileng e lefuoa ho fetometry (metheo ea motheo) ea lesea ka libeke tse mashome a mabeli, kaha ke boholo ba ngoana o lumellang motho hore a khetholle mekhoa ea ho ntlafatsa.
Likarolo tsa fetal ka beke ea 20
Ho fapana le li-ultrasound tsa pele libeke tse 10-12, lesea le etsoang ke li-ultrasound bakeng sa libeke tse mashome a mabeli le fana ka boitsebiso bo bongata haholo: ha e le feela tekanyo ea pelo le boholo ba coccyx-parietal (KTP) ea ngoana e ngotsoe, empa hape le boima, biparietal hlooho ea hlooho, hlooho le mpa mokokotlo , bophara ba sefubeng, hammoho le bolelele ba letheka, leoto le tlaase, forearm le lehetla.
Ke hobane'ng ha re hloka litekanyo tse joalo tse hlokolosi? Boholo ba lesea ka libeke tse mashome a mabeli tsa bokhachane bo thusa setsebi sa mafu a basali hore se etse liqeto mabapi le tekanyo ea khōlo le ntshetsopele ea lesea, ho lemoha hore na ho ka etsahala'ng ho bana le ho nka mehato e hlokahalang ka nako.
Leha ho le joalo, ho fokotsa hanyenyane ho boima le boima ba lesea ka libeke tse 20 ha hoa lokela ho ba sesosa sa ho tšoha. Kaofela ha re fapane: re tšesaane ebile re fepa hantle, re na le maoto a malelele kapa a mahlano le matsoho, ho pota-pota kapa ho atolosa hlooho. Liphetoho tsohle li behiloe liphatsa tsa lefutso, kahoo ha ho makatse hore ebe litholoana li fapana. Ho phaella moo, nts'etsopele ea li-intrauterine e atisa ho hlaha ka mokhoa o fapaneng, 'me maemong a mangata bana ba tlameha ho fumana litekanyetso. Hape ho ka 'na ha e-ba le liphoso ho theha nako ea bokhachane bakeng sa ho ea khoeling ea ho qetela.
Ntho e 'ngoe ke ha ho kheloha ho tloaelehileng ho fetang li-li-li-li-beke tse peli. Ka mohlala, lesea la libeke tse mashome a mabeli a mabeli a metso e mabeli le metso e mene (20-21) litsing tsa motheo le fapane hanyane ho tloha ho lesea le libeke tse 17-18 Tabeng ena, ho lieha ha khōlo ea fetal ho ka etsahala, e leng ho bolelang hore ho tla hlokahala tlhahlobo le phekolo e eketsehileng.
Fetometry ea lesea ke libeke tse 20 - e tloaelehileng
Ke mekhahlelo efe ea tekano ea lesea ka beke ea 20? KTP (kapa khōlo ea fetal) libeke tse mashome a mabeli a metso e mehlano (25-25 cm), le boima ba 'mele - 283-285 g. BDP ka libeke tse 20 e ka fapana ka hare ho 43-53 mm. Mokokotlo oa hlooho e tla be e le 154-186 mm, 'me mpa ea sefuba - 124-164 mm. Karolo ea sefubelu e lokela ho ba bonyane ho 46-48 mm.
Bolelele ba litho tsa maoto tsa lesea le entsoeng ke lesea le ipapisitsoe le boholo ba masapo a tubula:
- femur - 29-37 mm;
- humerus - 26-34 mm;
- senya masapo - 22-29 mm;
- masapo a leoto le ka tlaase - 26-34 mm.
Beke ea bo20 ea bokhachane - ntlafatso ea fetal
Ka kakaretso, ka beke ea bo20 litho tsohle tsa lesea li thehoa ka botlalo, tsoelo-pele ea bona le ntlafatso ea eona e ntse e tsoela pele.
Libeke tse mashome a mabeli, qetellong ngoana o bula mahlo a hae, 'me o khona ho bososela. Nakong ena, tholoana e ntse e anyesitse menoana 'me e utloa ka ho phethahetseng. Ho tloha bekeng ea bo20 ea bokhachane, lingaka li khothalletsa ho qala ho buisana le ngoana. Ngoana o ntse a fallela, 'me bo-'mè ba bang ba se ba ntse ba tseba boemo ba bophelo le litakatso tsa bana ba bona ka mokhoa oa ho tsamaea ha fetalata bekeng ea 20 .