Ch\u00fang ta th\u1ea5y trong \u0111i\u1ec7n \u1ea3nh v\u00e0 tr\u00ean truy\u1ec1n h\u00ecnh c\u00f3 c\u1ea3nh nh\u1eefng ng\u01b0\u1eddi \u1edf m\u1ed9t s\u1ed1 \u0111\u1ecba ph\u01b0\u01a1ng hay th\u00edch \u0111\u1ed9i v\u1eadt n\u1eb7ng nh\u01b0 v\u00f2 n\u01b0\u1edbc, c\u00e1i s\u1ecdt\u2026 l\u00ean \u0111\u1ea7u, ch\u1ee9 kh\u00f4ng th\u00edch tay x\u00e1ch, vai mang. L\u00e0m nh\u01b0 v\u1eady c\u00f3 nguy hi\u1ec3m l\u1eafm kh\u00f4ng? Ch\u1eb3ng nh\u1ebd trong \u0111\u00f3 c\u00f3 quy lu\u1eadt khoa h\u1ecdc g\u00ec sao?<\/p>\n\n\n\n
N\u1ebfu ch\u00fang ta ph\u00e2n t\u00edch k\u0129 m\u1ed9t t\u00ed th\u00ec s\u1ebd nh\u1eadn th\u1ea5y, \u0111\u1ed9i v\u1eadt n\u1eb7ng l\u00ean \u0111\u1ea7u khi b\u01b0\u1edbc \u0111i qu\u1ea3 th\u1ef1c \u0111\u1ee1 m\u1ea5t s\u1ee9c h\u01a1n l\u00e0 x\u00e1ch tay ho\u1eb7c v\u00e1c tr\u00ean vai, v\u00e0 c\u00f3 ph\u1ea7n khoa h\u1ecdc h\u01a1n.<\/p>\n\n\n\n
Khi \u0111i b\u1ed9 con ng\u01b0\u1eddi ph\u1ea3i ti\u00eau t\u1ed1n n\u0103ng l\u01b0\u1ee3ng. N\u0103ng l\u01b0\u1ee3ng b\u1ecb ti\u00eau t\u1ed1n c\u00e0ng nhi\u1ec1u, con ng\u01b0\u1eddi c\u1ea3m th\u1ea5y c\u00e0ng v\u1ea5t v\u1ea3; n\u0103ng l\u01b0\u1ee3ng ti\u00eau t\u1ed1n c\u00e0ng \u00edt, con ng\u01b0\u1eddi c\u1ea3m th\u1ea5y c\u00e0ng d\u1ec5 ch\u1ecbu. Khi \u0111i tr\u00ean \u0111\u01b0\u1eddng, n\u0103ng l\u01b0\u1ee3ng ti\u00eau t\u1ed1n ch\u1ee7 y\u1ebfu d\u00f9ng \u1edf hai m\u1eb7t: m\u1ed9t l\u00e0 kh\u1eafc ph\u1ee5c ma s\u00e1t gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u01a1 th\u1ec3; hai l\u00e0 d\u00f9ng v\u00e0o vi\u1ec7c sinh ra c\u00f4ng \u0111\u1ec3 kh\u1eafc ph\u1ee5c tr\u1ecdng l\u1ef1c. \u0110i tr\u00ean \u0111\u01b0\u1eddng b\u1eb1ng ph\u1eb3ng m\u00e0 c\u0169ng ph\u1ea3i sinh ra c\u00f4ng kh\u1eafc ph\u1ee5c tr\u1ecdng l\u1ef1c sao? \u0110\u00fang th\u1ebf, v\u00ec tr\u1ecdng t\u00e2m c\u1ee7a c\u01a1 th\u1ec3 theo b\u01b0\u1edbc \u0111i c\u1ee7a ng\u01b0\u1eddi m\u00e0 di \u0111\u1ed9ng l\u00ean xu\u1ed1ng. Khi d\u00f9ng tay nh\u1ea5c v\u1eadt n\u1eb7ng, tr\u1ecdng t\u00e2m c\u1ee7a v\u1eadt n\u1eb7ng c\u0169ng theo \u0111\u00f3 m\u00e0 di \u0111\u1ed9ng l\u00ean xu\u1ed1ng, v\u00e0 \u0111\u1ed9 cao di \u0111\u1ed9ng h\u1ea7u nh\u01b0 gi\u1ed1ng v\u1edbi \u0111\u1ed9 cao di \u0111\u1ed9ng l\u00ean xu\u1ed1ng c\u1ee7a tr\u1ecdng t\u00e2m c\u01a1 th\u1ec3 ng\u01b0\u1eddi. Khi tr\u1ecdng t\u00e2m n\u00e2ng l\u00ean ph\u1ea3i kh\u1eafc ph\u1ee5c tr\u1ecdng l\u1ef1c sinh ra c\u00f4ng; c\u00f2n khi tr\u1ecdng t\u00e2m h\u1ea1 xu\u1ed1ng, ph\u1ea7n n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 l\u1ea1i b\u1ecb chuy\u1ec3n ho\u00e1 th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u00e2m thanh v\u00e0 nhi\u1ec7t n\u0103ng sinh ra khi ch\u00e2n ch\u1ea1m l\u00ean m\u1eb7t \u0111\u1ea5t. V\u00ec v\u1eady, ng\u01b0\u1eddi x\u00e1ch v\u1eadt n\u1eb7ng khi b\u01b0\u1edbc \u0111i th\u00ec ph\u1ea3i ti\u00eau hao m\u1ed9t ph\u1ea7n n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 kh\u1eafc ph\u1ee5c tr\u1ecdng l\u1ef1c c\u1ee7a ng\u01b0\u1eddi v\u00e0 v\u1eadt n\u1eb7ng m\u00e0 sinh ra c\u00f4ng. N\u1ebfu \u0111\u1eb7t v\u1eadt n\u1eb7ng l\u00ean tr\u00ean \u0111\u1ea7u, do c\u1ed9t s\u1ed1ng c\u1ee7a con ng\u01b0\u1eddi c\u00f3 t\u00ednh \u0111\u00e0n h\u1ed3i, v\u1eadt n\u1eb7ng nh\u01b0 \u0111\u00e8 l\u00ean c\u00e1i l\u00f2 xo, khi ng\u01b0\u1eddi b\u01b0\u1edbc \u0111i, s\u1ef1 nh\u1ea5p nh\u00f4 c\u1ee7a v\u1eadt n\u1eb7ng t\u01b0\u01a1ng \u0111\u1ed1i nh\u1ecf, c\u00f4ng sinh ra \u0111\u1ec3 kh\u1eafc ph\u1ee5c tr\u1ecdng l\u1ef1c c\u1ee7a v\u1eadt n\u1eb7ng nh\u1ecf \u0111i, n\u0103ng l\u01b0\u1ee3ng ti\u00eau hao c\u1ee7a ng\u01b0\u1eddi c\u0169ng gi\u1ea3m nh\u1ecf t\u01b0\u01a1ng \u1ee9ng. V\u00ec v\u1eady, ng\u01b0\u1eddi s\u1ebd c\u1ea3m th\u1ea5y nh\u1eb9 nh\u00e0ng h\u01a1n.<\/p>\n\n\n\n
Ng\u01b0\u1eddi ta \u0111\u00e3 l\u00e0m m\u1ed9t th\u1ef1c nghi\u1ec7m th\u00fa v\u1ecb, l\u1ea7n l\u01b0\u1ee3t \u0111o th\u1eed l\u01b0\u1ee3ng ti\u00eau hao oxi c\u1ee7a vi\u1ec7c \u0111i \u0111\u01b0\u1eddng c\u00f3 x\u00e1ch v\u1eadt n\u1eb7ng tr\u00ean tay. K\u1ebft qu\u1ea3 l\u00e0: khi x\u00e1ch v\u1eadt n\u1eb7ng tr\u00ean tay, l\u01b0\u1ee3ng ti\u00eau hao oxi l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi khi \u0111\u1ed9i v\u1eadt n\u1eb7ng. L\u01b0\u1ee3ng ti\u00eau hao oxi c\u00e0ng nhi\u1ec1u, ch\u1ee9ng t\u1ecf n\u0103ng l\u01b0\u1ee3ng ti\u00eau hao c\u1ee7a c\u01a1 th\u1ec3 ng\u01b0\u1eddi c\u0169ng c\u00e0ng nhi\u1ec1u. Do \u0111\u00f3 \u0111\u1ed9i v\u1eadt n\u1eb7ng l\u00ean \u0111\u1ea7u l\u00e0 c\u00f3 c\u0103n c\u1ee9 khoa h\u1ecdc.<\/p>\n\n\n\n
N\u1ebfu tr\u1ea3i qua m\u1ed9t th\u1eddi gian luy\u1ec7n t\u1eadp, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 \u0111\u1ed9i \u0111\u01b0\u1ee3c v\u1eadt n\u1eb7ng l\u00ean \u0111\u1ea7u m\u1ed9t c\u00e1ch v\u1eefng v\u00e0ng, l\u00fac b\u01b0\u1edbc \u0111i b\u1ea1n s\u1ebd c\u1ea3m th\u1ea5y nh\u1eb9 nh\u00e0ng tho\u1ea3i m\u00e1i.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Tr\u1ecdng t\u00e2m; Sinh ra c\u00f4ng; L\u01b0\u1ee3ng ti\u00eau hao oxi.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Ch\u00fang ta th\u1ea5y trong \u0111i\u1ec7n \u1ea3nh v\u00e0 tr\u00ean truy\u1ec1n h\u00ecnh c\u00f3 c\u1ea3nh nh\u1eefng ng\u01b0\u1eddi \u1edf m\u1ed9t s\u1ed1 \u0111\u1ecba ph\u01b0\u01a1ng hay th\u00edch \u0111\u1ed9i v\u1eadt n\u1eb7ng nh\u01b0 v\u00f2 n\u01b0\u1edbc, c\u00e1i s\u1ecdt\u2026 l\u00ean \u0111\u1ea7u, ch\u1ee9 kh\u00f4ng th\u00edch tay x\u00e1ch, vai mang. L\u00e0m nh\u01b0 v\u1eady c\u00f3 nguy hi\u1ec3m l\u1eafm kh\u00f4ng? Ch\u1eb3ng nh\u1ebd trong \u0111\u00f3 c\u00f3 quy lu\u1eadt khoa h\u1ecdc […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,7],"tags":[],"class_list":["post-5551","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=5551"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5551\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}