mang thai<\/a>, vi\u1ec7c theo d\u00f5i s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi l\u00e0 c\u1ef1c k\u1ef3 quan tr\u1ecdng. Trong \u0111\u00f3, c\u1ea7n thi\u1ebft nh\u1ea5t v\u1eabn l\u00e0 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c tu\u1ed5i c\u1ee7a thai nhi \u0111\u1ec3 c\u00e1c b\u00e1c s\u0129 chu\u1ea9n \u0111o\u00e1n ng\u00e0y d\u1ef1 sinh c\u1ee7a b\u00e9. \u0110\u1ed3ng th\u1eddi, \u0111\u1ec3 ba m\u1eb9 c\u00f3 nh\u1eefng s\u1ef1 chu\u1ea9n b\u1ecb c\u1ea7n thi\u1ebft, ch\u00e0o \u0111\u00f3n b\u00e9 ra \u0111\u1eddi.<\/p>\n<\/p>\n
Tu\u1ed5i thai l\u00e0 g\u00ec?<\/h2>\n
\u0110\u1ea7u ti\u00ean, m\u1eb9 c\u1ea7n t\u00ecm hi\u1ec3u tu\u1ed5i thai l\u00e0 g\u00ec. Tu\u1ed5i thai l\u00e0 tu\u1ed5i th\u1ef1c c\u1ee7a thai nhi, th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ednh t\u1eeb th\u1eddi \u0111i\u1ec3m th\u1ee5 thai \u0111\u1ebfn l\u00fac b\u00e9 sinh. Hi\u1ec7n nay, c\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p, nhi\u1ec1u c\u00e1ch th\u1ee9c t\u00ednh tu\u1ed5i thai nhi. Tuy nhi\u00ean, m\u1ed7i c\u00e1ch \u0111\u1ec1u c\u00f3 x\u00e1c su\u1ea5t kh\u00e1c nhau, ph\u1ee5 thu\u1ed9c v\u00e0o t\u1eebng th\u1ec3 tr\u1ea1ng c\u1ee7a m\u1eb9, c\u0169ng nh\u01b0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi. Do \u0111\u00f3, m\u1eb9 c\u1ea7n th\u1ef1c hi\u1ec7n nhi\u1ec1u c\u00e1ch t\u00ednh kh\u00e1c nhau \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n tu\u1ed5i v\u00e0 ng\u00e0y d\u1ef1 sinh c\u1ee7a b\u00e9.<\/p>\n
C\u00e1c c\u00e1ch t\u00ednh tu\u1ed5i thai ch\u00ednh x\u00e1c<\/h2>\n
<\/p>\n
Theo chu k\u1ef3 kinh nguy\u1ec7t<\/strong><\/p>\nM\u1ed9t trong nh\u1eefng c\u00e1ch t\u00ednh tu\u1ed5i thai th\u01b0\u1eddng g\u1eb7p nh\u1ea5t l\u00e0 t\u00ednh theo chu k\u1ef3 kinh nguy\u1ec7t. N\u1ebfu b\u1ea1n th\u01b0\u1eddng xuy\u00ean theo d\u00f5i chu k\u1ef3 kinh nguy\u1ec7t h\u00e0ng th\u00e1ng th\u00ec s\u1ebd d\u1ec5 d\u00e0ng x\u00e1c \u0111\u1ecbnh ng\u00e0y r\u1ee5ng tr\u1ee9ng v\u00e0 ng\u00e0y th\u1ee5 thai. T\u1eeb \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 t\u00ednh ra tu\u1ed5i thai hi\u1ec7n t\u1ea1i c\u1ee7a b\u00e9. Tuy nhi\u00ean, c\u00e1ch n\u00e0y c\u0169ng ch\u01b0a ho\u00e0n to\u00e0n ch\u00ednh x\u00e1c v\u00ec \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 ch\u1ecb em ph\u1ee5 n\u1eef c\u00f3 k\u1ef3 kinh nguy\u1ec7t kh\u00f4ng \u0111\u1ec1u \u0111\u1eb7n, ng\u00e0y r\u1ee5ng tr\u1ee9ng th\u01b0\u1eddng xuy\u00ean thay \u0111\u1ed5i n\u00ean kh\u00f3 x\u00e1c \u0111\u1ecbnh h\u01a1n c\u00e1c tr\u01b0\u1eddng h\u1ee3p th\u00f4ng th\u01b0\u1eddng.<\/p>\n
Theo ng\u00e0y th\u1eed thai<\/strong><\/p>\nC\u00e1c m\u1eb9 c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh tu\u1ed5i c\u1ee7a thai nhi d\u1ef1a theo ng\u00e0y th\u1eed thai. Hi\u1ec7n nay, h\u1ea7u h\u1ebft c\u00e1c d\u1ee5ng c\u1ee5 th\u1eed thai \u0111\u1ec1u c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh b\u1ea1n c\u00f3 mang thai hay kh\u00f4ng trong v\u00f2ng 7-10 ng\u00e0y sau khi quan h\u1ec7 t\u00ecnh d\u1ee5c kh\u00f4ng an to\u00e0n. V\u00ec v\u1eady, n\u1ebfu b\u1ea1n th\u1eed thai ngay sau khi quan h\u1ec7 10 ng\u00e0y th\u00ec r\u1ea5t c\u00f3 th\u1ec3 thai nhi \u0111\u00e3 \u0111\u01b0\u1ee3c kho\u1ea3ng 1 tu\u1ea7n tu\u1ed5i.<\/p>\n
<\/p>\n
Theo chi\u1ec1u cao t\u1eed cung<\/strong><\/p>\nM\u1ed9t c\u00e1ch kh\u00e1c c\u00f3 th\u1ec3 t\u00ednh tu\u1ed5i thai nhi l\u00e0 d\u1ef1a theo chi\u1ec1u cao t\u1eed cung c\u1ee7a ng\u01b0\u1eddi m\u1eb9. C\u00e1c b\u00e1c s\u0129 chuy\u00ean khoa s\u1ebd \u0111o k\u00edch th\u01b0\u1edbc t\u1eed cung c\u1ee7a ng\u01b0\u1eddi m\u1eb9, t\u1eeb \u0111\u00f3, x\u00e1c \u0111\u1ecbnh tu\u1ed5i c\u1ee7a thai nhi. Tuy nhi\u00ean, c\u00e1ch n\u00e0y c\u0169ng c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf. Ch\u1eb3ng h\u1ea1n nh\u01b0 trong tr\u01b0\u1eddng h\u1ee3p ng\u01b0\u1eddi m\u1eb9 mang thai \u0111\u00f4i, ho\u1eb7c b\u1ecb u x\u01a1 t\u1eed cung th\u00ec k\u1ebft qu\u1ea3 th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn sai l\u1ec7ch.<\/p>\n
Theo s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi<\/strong><\/p>\nKhi si\u00eau \u00e2m, c\u00e1c b\u00e1c s\u0129 chuy\u00ean khoa s\u1ebd quan s\u00e1t v\u00e0 chu\u1ea9n \u0111o\u00e1n s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi. Sau \u0111\u00f3, h\u1ecd s\u1ebd so s\u00e1nh v\u1edbi thai nhi ph\u00e1t tri\u1ec3n th\u00f4ng th\u01b0\u1eddng v\u00e0 d\u1ef1 \u0111o\u00e1n tu\u1ed5i c\u0169ng nh\u01b0 ng\u00e0y d\u1ef1 sinh c\u1ee7a b\u00e9. \u1ede m\u1ed9t s\u1ed1 thai nhi ph\u00e1t tri\u1ec3n t\u1ed1t v\u00e0 l\u1edbn h\u01a1n m\u1ee9c b\u00ecnh th\u01b0\u1eddng, m\u1eb9 s\u1ebd nh\u1eadn th\u1ea5y c\u00f3 s\u1ef1 sai l\u1ec7ch gi\u1eefa c\u00e1ch t\u00ednh d\u1ef1a theo chu k\u1ef3 kinh nguy\u1ec7t v\u00e0 c\u00e1ch t\u00ednh d\u1ef1a theo s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi \u0111\u1ea5y.<\/p>\n
<\/p>\n
Theo thai m\u00e1y<\/strong><\/p>\nThai m\u00e1y th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n \u1edf tu\u1ea7n 19 cho \u0111\u1ebfn tu\u1ea7n 21 c\u1ee7a chu k\u1ef3. Th\u1ebf nh\u01b0ng, c\u00e1ch t\u00ednh n\u00e0y c\u0169ng thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o m\u1eb9 mang thai l\u1ea7n \u0111\u1ea7u hay nh\u1eefng l\u1ea7n sau. V\u00ed d\u1ee5 nh\u01b0 n\u1ebfu m\u1eb9 mang thai con \u0111\u1ea7u l\u00f2ng th\u00ec thai m\u00e1y c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n \u1edf tu\u1ea7n 19 c\u1ee7a thai k\u1ef3. Tuy nhi\u00ean, n\u1ebfu m\u1eb9 mang thai l\u1ea7n hai th\u00ec thai m\u00e1y c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n s\u1edbm h\u01a1n, \u1edf tu\u1ea7n th\u1ee9 17 c\u1ee7a thai k\u1ef3.<\/p>\n","protected":false},"excerpt":{"rendered":"
Trong su\u1ed1t qu\u00e1 tr\u00ecnh mang thai, vi\u1ec7c theo d\u00f5i s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi l\u00e0 c\u1ef1c k\u1ef3 quan tr\u1ecdng. Trong \u0111\u00f3, c\u1ea7n thi\u1ebft nh\u1ea5t v\u1eabn l\u00e0 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c tu\u1ed5i c\u1ee7a thai nhi \u0111\u1ec3 c\u00e1c b\u00e1c s\u0129 chu\u1ea9n \u0111o\u00e1n ng\u00e0y d\u1ef1 sinh c\u1ee7a b\u00e9. \u0110\u1ed3ng th\u1eddi, \u0111\u1ec3 ba m\u1eb9 c\u00f3 nh\u1eefng s\u1ef1 chu\u1ea9n […]<\/p>\n","protected":false},"author":1,"featured_media":7667,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[144],"tags":[],"class_list":["post-7656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mang-thai"],"acf":[],"yoast_head":"\n
C\u00e1ch t\u00ednh tu\u1ed5i thai ch\u00ednh x\u00e1c<\/title>\n\n\n\n\n\n\n\n\n\n\n\n\n\t\n\t\n\t\n\n\n\t\n\t\n\t\n