He aha kēia hōʻike o ka 2nd o nā makahikiʻelua? Ua māheleʻia iʻelua mau mea - he hōʻoloʻana i ke koko a me ka hoʻonaloka ultrasound. Paipai nui ke kaukaʻaʻole e hōʻole i ka hoʻoholoʻana o kēia noi, no ka mea, he mea koʻikoʻi loa no ka olakino o ka pēpē e hiki mai ana. ʻAʻole naʻe e hiki i kekahi ke hana ikaika i ka nānāʻana.
ʻO ka biochemical a me ke kānikona perinatal hōʻike o ka lua o ka manawa
Hoʻopukaʻia kēia mahele mai ka lāʻumikumamāono a me ka iwakālua. Akā,ʻo ia ka meaʻike loa i ka hebedoma 18 o ka uluʻana o intrauterine. No ka hoʻohālikelike i nā hopena kūpono no ka'ōpiopio, ua hanaʻiaʻekolu hōʻailona (ʻaʻohe pinepine pinepine). He hōʻailona koko kēia no nā hormones likeʻole ka estriol free, AFP, a me ka hCG. ʻO nā hualoaʻa o ka hōʻikeʻana o ka lāʻau bioinatal o ka 2nd o ka makahikiʻelua e hōʻike ana i nā maʻi kūpilikiʻi likeʻole e like me Edwards syndrome, Down syndrome, kaʻole o ka lolo, Patau, de Lange maʻi, Smith-Lemli-Opitsa maʻi a me ka triploidy hemoʻole.
Nānā o ka nānāʻana i ka'ōlani o ka 2 mau mahina, no ka hopena i hoʻopukaʻia e pili ana i ka piʻi nuiʻana o ka maʻi hānal,ʻoi aku ka lōʻihi,ʻaʻole naʻe i ka hopena hope loa. Hōʻike wale lākou i ka hiki i ke kaʻawaleʻana o ka pēpē, akāʻaʻole i 100% pono. Inā pilikia ka'ōkuhi, mai hoʻohaʻahaʻa, akā, e koho i kahi hui me kahi geneticist kaha e hiki ke hoʻokuʻu i nā kānalua.