T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: B\u00e1c s\u0129 gi\u1ea3i \u0111\u00e1p v\u1ec1 chuy\u1ec7n \u1ea5y – Ferederic Rossiter<\/p>\n\n\n\n
B\u00e1c s\u0129: H\u00e0nh vi t\u00ecnh d\u1ee5c c\u1ee7a con ng\u01b0\u1eddi b\u1ecb chi ph\u1ed1i b\u1edfi m\u1ed9t m\u1ee5c \u0111\u00edch ch\u00ednh: \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 th\u1ed1ng nh\u1ea5t v\u1ec1 t\u00ecnh d\u1ee5c. C\u00e1c thay \u0111\u1ed5i v\u1ec1 sinh l\u00fd v\u00e0 n\u1ed9i t\u1ea1ng di\u1ec5n ra trong c\u01a1 th\u1ec3 khi giao h\u1ee3p r\u1ea5t \u0111a d\u1ea1ng. Nh\u1eefng bi\u1ec3u hi\u1ec7n b\u00ean ngo\u00e0i d\u01b0\u1edbi d\u1ea1ng k\u00edch th\u00edch t\u00ecnh d\u1ee5c, s\u1ef1 c\u01b0\u01a1ng c\u1ee9ng, ph\u00f3ng tinh v\u00e0 c\u1ef1c kho\u00e1i l\u00e0 c\u00e1c ph\u1ea7n ri\u00eang bi\u1ec7t trong h\u1ec7 th\u1ed1ng ph\u1ea3n x\u1ea1 th\u1ed1ng nh\u1ea5t v\u1ec1 h\u00e0nh vi c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n\n\n\n
Cu\u1ed9c giao h\u1ee3p c\u00f3 th\u1ec3 chia l\u00e0m v\u00e0i th\u1eddi k\u1ef3 n\u1ed1i ti\u1ebfp nhau \u1edf \u0111\u00e0n \u00f4ng c\u0169ng nh\u01b0 \u1edf \u0111\u00e0n b\u00e0. Trong t\u1eebng th\u1eddi k\u1ef3 c\u00f3 nh\u1eefng thay \u0111\u1ed5i nh\u1ea5t \u0111\u1ecbnh \u1edf c\u00e1c c\u01a1 quan sinh d\u1ee5c v\u00e0 c\u01a1 th\u1ec3 n\u00f3i chung. Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, nhi\u1ec1u giai \u0111o\u1ea1n c\u00f3 th\u1ec3 kh\u00f4ng xu\u1ea5t hi\u1ec7n. Ch\u1eb3ng h\u1ea1n, v\u00ec nh\u1eefng nguy\u00ean nh\u00e2n n\u00e0o \u0111\u00f3 m\u00e0 m\u1ea5t s\u1ef1 k\u00edch th\u00edch, giao h\u1ee3p c\u00f3 th\u1ec3 k\u1ebft th\u00fac s\u1edbm m\u00e0 kh\u00f4ng c\u00f3 giai \u0111o\u1ea1n c\u1ef1c kho\u00e1i.<\/p>\n\n\n\n
Trong giai \u0111o\u1ea1n h\u01b0ng ph\u1ea5n, c\u1ea3 hai ng\u01b0\u1eddi ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng c\u00e1c h\u00e0nh \u0111\u1ed9ng vu\u1ed1t ve, \u00f4m \u1ea5p, h\u00f4n, n\u00f3i nh\u1eefng l\u1eddi y\u00eau \u0111\u01b0\u01a1ng, \u0111\u1ee5ng ch\u1ea1m t\u1edbi c\u01a1 th\u1ec3 kh\u1ecfa th\u00e2n. C\u00e1c c\u01a1 quan sinh d\u1ee5c s\u1ebd ph\u00e1t tri\u1ec3n \u0111\u1ed9 nh\u1ea1y c\u1ea3m, \u0111\u1eb7c bi\u1ec7t l\u00e0 quy \u0111\u1ea7u v\u00e0 \u00e2m v\u1eadt. \u1ede c\u1eeda v\u00e0o \u00e2m \u0111\u1ea1o ti\u1ebft ra d\u1ecbch nh\u1ea7y. \u0110\u00e0n \u00f4ng b\u1eaft \u0111\u1ea7u c\u00f3 s\u1ef1 c\u01b0\u01a1ng c\u1ee9ng c\u1ee7a d\u01b0\u01a1ng v\u1eadt, m\u1eb7c d\u00f9 \u0111\u1ed9 c\u01b0\u01a1ng c\u1ee9ng ch\u01b0a \u0111\u1ee7 \u0111\u1ec3 \u0111\u01b0a d\u01b0\u01a1ng v\u1eadt v\u00e0o \u00e2m \u0111\u1ea1o.<\/p>\n\n\n\n
Nh\u00e2n t\u1ed1 ch\u1ee7 y\u1ebfu c\u1ea7n thi\u1ebft cho giao h\u1ee3p l\u00e0 s\u1ef1 c\u01b0\u01a1ng c\u1ee9ng c\u1ee7a d\u01b0\u01a1ng v\u1eadt. \u0110\u00f3 l\u00e0 qu\u00e1 tr\u00ecnh ph\u1ea3n x\u1ea1 c\u00f3 \u0111i\u1ec1u ki\u1ec7n. N\u1ed7 l\u1ef1c c\u1ee7a \u00fd ch\u00ed kh\u00f4ng th\u1ec3 l\u00e0m xu\u1ea5t hi\u1ec7n s\u1ef1 c\u01b0\u01a1ng c\u1ee9ng \u0111\u01b0\u1ee3c. Vi\u1ec7c c\u1ed1 l\u00e0m c\u01b0\u01a1ng c\u1ee9ng c\u00f3 th\u1ec3 l\u00e0m t\u1eaft ng\u1ea5m ho\u1eb7c k\u00ecm h\u00e3m qu\u00e1 tr\u00ecnh n\u00e0y.<\/p>\n\n\n\n
Qu\u00e1 tr\u00ecnh h\u01b0ng ph\u1ea5n chuy\u1ec3n th\u00e0nh qu\u00e1 tr\u00ecnh c\u0103ng th\u1eb3ng nh\u1ea5t v\u1ec1 t\u00ecnh d\u1ee5c. L\u00fac \u0111\u00f3, s\u1ef1 c\u01b0\u01a1ng c\u1ee9ng c\u1ee7a \u0111\u00e0n \u00f4ng tr\u1edf n\u00ean r\u00f5 h\u01a1n. \u1ede c\u00e1c mu nh\u1ecf c\u1ee7a ph\u1ee5 n\u1eef, m\u00e1u d\u1ed3n \u0111\u1ebfn l\u00e0m c\u00e1c mu n\u00e0y to g\u1ea5p v\u00e0i l\u1ea7n so v\u1edbi b\u00ecnh th\u01b0\u1eddng v\u00e0 c\u00f3 m\u00e0u \u0111\u1ecf s\u1eabm. Th\u00e0nh \u00e2m \u0111\u1ea1o ti\u1ebft ra d\u1ecbch nh\u1eddn l\u00e0m \u01b0\u1edbt \u00e2m \u0111\u1ea1o. \u0110\u00e0n \u00f4ng ham mu\u1ed1n \u0111\u01b0\u1ee3c \u0111\u01b0a d\u01b0\u01a1ng v\u1eadt v\u00e0o \u00e2m \u0111\u1ea1o v\u00e0 \u0111\u00e0n b\u00e0 mu\u1ed1n \u0111\u01b0\u1ee3c ti\u1ebfp nh\u1eadn d\u01b0\u01a1ng v\u1eadt.<\/p>\n\n\n\n
B\u1eaft \u0111\u1ea7u s\u1ef1 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c c\u01a1 (d\u1eadp) l\u00e0m h\u01b0ng ph\u1ea5n c\u00e1c v\u00f9ng k\u00edch d\u1ee5c c\u1ee7a c\u1ea3 hai ng\u01b0\u1eddi.<\/p>\n\n\n\n
S\u1ef1 k\u00edch th\u00edch c\u1ee7a \u00e2m v\u1eadt di\u1ec5n ra t\u1eeb t\u1eeb, ch\u1eadm h\u01a1n nhi\u1ec1u so v\u1edbi s\u1ef1 c\u01b0\u01a1ng c\u1ee9ng c\u1ee7a d\u01b0\u01a1ng v\u1eadt \u0111\u00e0n \u00f4ng. \u00c2m v\u1eadt to d\u1ea7n l\u00ean v\u00e0 tr\u1edf n\u00ean r\u1ea5t nh\u1ea1y c\u1ea3m. Y\u1ebfu t\u1ed1 t\u00e2m l\u00fd r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c k\u00edch th\u00edch \u00e2m v\u1eadt; nhi\u1ec1u khi vi\u1ec7c k\u00edch th\u00edch \u0111\u1ea7u v\u00e0 v\u00f9ng xung quanh \u00e2m v\u1eadt l\u00e0m cho n\u00f3 c\u01b0\u01a1ng h\u01a1n so v\u1edbi y\u1ebfu t\u1ed1 t\u00e2m l\u00fd. \u0110i\u1ec1u \u0111\u00f3 gi\u1ea3i th\u00edch cho nh\u1eefng tr\u01b0\u1eddng h\u1ee3p ng\u01b0\u1eddi ph\u1ee5 n\u1eef \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ef1c kho\u00e1i v\u1edbi ng\u01b0\u1eddi \u0111\u00e0n \u00f4ng m\u00e0 c\u00f4 ta y\u00eau ho\u1eb7c l\u1ef1a ch\u1ecdn. Trong l\u00fac giao h\u1ee3p, \u00edt c\u00f3 tr\u01b0\u1eddng h\u1ee3p d\u01b0\u01a1ng v\u1eadt c\u1ecd x\u00e1t tr\u1ef1c ti\u1ebfp v\u1edbi \u00e2m v\u1eadt (tr\u1eeb t\u01b0 th\u1ebf “ph\u1ee5 n\u1eef \u1edf tr\u00ean”). Nh\u01b0ng th\u01b0\u1eddng th\u00ec s\u1ef1 c\u1ecd x\u00e1t nh\u01b0 v\u1eady c\u0169ng ch\u01b0a \u0111\u1ee7 n\u00ean c\u1ea3 \u0111\u00e0n \u00f4ng ho\u1eb7c \u0111\u00e0n b\u00e0 ph\u1ea3i c\u00f3 s\u1ef1 k\u00edch th\u00edch b\u1ed5 sung \u0111\u1ea7u \u00e2m v\u1eadt.<\/p>\n\n\n\n
C\u00e1c chuy\u1ec3n \u0111\u1ed9ng giao h\u1ee3p ng\u00e0y c\u00e0ng t\u0103ng v\u00e0 b\u1eaft \u0111\u1ea7u giai \u0111o\u1ea1n kho\u00e1i c\u1ef1c. Trung b\u00ecnh t\u1eeb l\u00fac b\u1eaft \u0111\u1ea7u giao h\u1ee3p cho t\u1edbi l\u00fac \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ef1c kho\u00e1i th\u01b0\u1eddng l\u00e0 3-4 ph\u00fat. Nh\u01b0ng \u0111\u00f3 c\u0169ng ch\u1ec9\u1ed1 li\u1ec7u t\u01b0\u01a1ng \u0111\u1ed1i. \u1ede c\u00e1c \u0111\u00f4i m\u1edbi g\u1eb7p nhau sau m\u1ed9t th\u1eddi k\u1ef3 xa c\u00e1ch ho\u1eb7c c\u00e1c c\u1eb7p v\u1ee3 ch\u1ed3ng tr\u1ebb m\u1edbi c\u01b0\u1edbi, c\u1ef1c kho\u00e1i c\u00f3 th\u1ec3 \u0111\u1ebfn nhanh h\u01a1n. Trong th\u1eddi \u0111i\u1ec3m c\u1ef1c kho\u00e1i, \u1edf c\u00e1c c\u01a1 v\u00f9ng h\u1eadu m\u00f4n, tuy\u1ebfn n\u01b0\u1edbc ti\u1ec3u ho\u1eb7c v\u00f9ng ti\u1ec1n t\u1eed cung c\u1ee7a ph\u1ee5 n\u1eef c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng co l\u1ea1i t\u1ef1 nhi\u00ean. C\u00f3 th\u1ec3 m\u1eb7t \u0111\u1ecf l\u00ean, c\u00e1c tuy\u1ebfn v\u00fa c\u1ee9ng l\u1ea1i, \u0111\u1ea7u v\u00fa ph\u1ed3ng l\u00ean, nh\u01b0ng ngay sau khi \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ef1c kho\u00e1i, ch\u00fang tr\u1edf n\u00ean m\u1ec1m. N\u1ebfu n\u00fam v\u00fa v\u1eabn c\u1ee9ng, \u0111i\u1ec1u \u0111\u00f3 ch\u1ee9ng t\u1ecf ng\u01b0\u1eddi ph\u1ee5 n\u1eef kh\u00f4ng \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ef1c kho\u00e1i. C\u1ef1c kho\u00e1i \u1edf ph\u1ee5 n\u1eef c\u0169ng \u0111\u01b0\u1ee3c chia l\u00e0m 3 th\u1eddi k\u1ef3. Th\u1eddi k\u1ef3 \u0111\u1ea7u r\u1ea5t ch\u1edbp cho\u00e1ng, d\u01b0\u1eddng nh\u01b0 s\u1ef1 nh\u1ea1y c\u1ea3m d\u1eebng l\u1ea1i, sau \u0111\u00f3 xu\u1ea5t hi\u1ec7n c\u1ea3m gi\u00e1c man m\u00e1t ho\u1eb7c ti\u1ebft d\u1ecbch. Hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f3 gi\u1ed1ng nh\u01b0 s\u1ef1 ph\u00f3ng tinh c\u1ee7a ph\u1ee5 n\u1eef. Sau \u0111\u00f3, c\u1ea3m gi\u00e1c \u1ea5m n\u00f3ng xu\u1ea5t hi\u1ec7n \u1edf v\u00f9ng x\u01b0\u01a1ng ch\u1eadu v\u00e0 lan ra kh\u1eafp c\u01a1 th\u1ec3. Th\u1eddi k\u1ef3 th\u1ee9 ba b\u1eaft \u0111\u1ea7u v\u1edbi s\u1ef1 co th\u1eaft t\u1eed cung v\u00e0 v\u00f9ng x\u01b0\u01a1ng ch\u1eadu. Ng\u01b0\u1eddi ta cho r\u1eb1ng, n\u1ebfu ng\u01b0\u1eddi ph\u1ee5 n\u1eef c\u1ea3m th\u1ea5y 8-12 l\u1ea7n co th\u1eaft l\u00e0 c\u1ef1c kho\u00e1i m\u1ea1nh, c\u00f2n 3-4 l\u1ea7n l\u00e0 c\u1ef1c kho\u00e1i v\u1eeba ph\u1ea3i.<\/p>\n\n\n\n
C\u00f3 hai d\u1ea1ng c\u1ef1c kho\u00e1i: c\u1ef1c kho\u00e1i di k\u00edch th\u00edch \u00e2m v\u1eadt, do va ch\u1ea1m v\u00e0o \u00e2m v\u1eadt v\u00e0 c\u1ef1c kho\u00e1i do d\u01b0\u01a1ng v\u1eadt \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0 chuy\u1ec3n \u0111\u1ed9ng trong \u00e2m \u0111\u1ea1o. Nh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 khi c\u1ef1c kho\u00e1i \u00e2m \u0111\u1ea1o kh\u00f4ng c\u1ea7n t\u00e1c \u0111\u1ed9ng v\u00e0o \u00e2m v\u1eadt. \u0110a s\u1ed1 ph\u1ee5 n\u1eef cho r\u1eb1ng h\u1ecd \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ef1c kho\u00e1i m\u1ea1nh nh\u1ea5t khi \u0111\u1ed3ng th\u1eddi \u0111\u01b0a d\u01b0\u01a1ng v\u1eadt v\u00e0o \u00e2m \u0111\u1ea1o v\u00e0 k\u00edch th\u00edch \u00e2m v\u1eadt ho\u1eb7c c\u00e1c v\u00f9ng k\u00edch d\u1ee5c kh\u00e1c. V\u00ec th\u1ebf, quan \u0111i\u1ec3m cho r\u1eb1ng c\u00f3 2 d\u1ea1ng c\u1ef1c kho\u00e1i \u0111\u1ed1i l\u1eadp nhau l\u00e0 kh\u00f4ng \u0111\u00fang.<\/p>\n\n\n\n
Khi giao h\u1ee3p, v\u1ecf n\u00e3o \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ebfn nhi\u1ec1u k\u00edch th\u00edch kh\u00e1c nhau kh\u00f4ng nh\u1eefng do vi\u1ec7c t\u00e1c \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp t\u1edbi c\u00e1c v\u00f9ng k\u00edch d\u1ee5c m\u00e0 c\u00f2n do d\u00e1ng v\u1ebb b\u00ean ngo\u00e0i c\u1ee7a b\u1ea1n t\u00ecnh, c\u00e1c chuy\u1ec3n \u0111\u1ed9ng, c\u1eed ch\u1ec9, gi\u1ecdng n\u00f3i, l\u1eddi l\u1ebd c\u1ee7a anh ta\u2026 Nhi\u1ec1u \u0111\u00f4i v\u1ee3 ch\u1ed3ng th\u01b0\u1eddng s\u1eed d\u1ee5ng l\u00e0n \u0111i\u1ec7u ho\u1eb7c b\u1ea3n nh\u1ea1c quen thu\u1ed9c \u0111\u1ec3 g\u1ee3i c\u1ea3m x\u00fac h\u01b0ng ph\u1ea5n. T\u1ea5t c\u1ea3 \u0111i\u1ec1u \u0111\u00f3 cho ta bi\u1ebft r\u1eb1ng, h\u1ec7 th\u1ed1ng ph\u1ea3n x\u1ea1 c\u00f3 \u0111i\u1ec1u ki\u1ec7n c\u00f3 \u00fd ngh\u0129a r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ef1c kho\u00e1i.<\/p>\n\n\n\n
Trong th\u1eddi \u0111i\u1ec3m c\u1ef1c kho\u00e1i, c\u00e1c c\u01a1 ni\u1ec7u \u0111\u1ea1o c\u1ee7a \u0111\u00e0n \u00f4ng co th\u1eaft l\u1ea1i \u0111\u1ec3 \u0111\u1ea9y tinh d\u1ecbch ra ngo\u00e0i. Tinh d\u1ecbch ph\u1ee5t ra v\u1edbi kho\u1ea3ng c\u00e1ch 0,8 gi\u00e2y\/l\u1ea7n; sau 3-4 l\u1ea7n co th\u1eaft, s\u1ee9c m\u1ea1nh v\u00e0 t\u1ea7n s\u1ed1 co th\u1eaft gi\u1ea3m d\u1ea7n. Tinh ho\u00e0n v\u00e0 b\u00e0ng quang c\u0169ng tham gia giao h\u1ee3p. C\u00e1c c\u01a1 c\u1ee7a b\u00ecu co l\u1ea1i, tinh ho\u00e0n \u0111\u01b0\u1ee3c n\u00e2ng l\u00ean tr\u00ean do s\u1ef1 co l\u1ea1i t\u1ef1 nhi\u00ean c\u1ee7a c\u00e1c c\u01a1 treo. \u0110i\u1ec1u \u0111\u00f3 cho ph\u00e9p ng\u01b0\u1eddi \u0111\u00e0n \u00f4ng th\u1ef1c hi\u1ec7n vi\u1ec7c ph\u00f3ng tinh \u0111\u1ea7y \u0111\u1ee7 h\u01a1n.<\/p>\n\n\n\n
Trong th\u1eddi \u0111i\u1ec3m c\u1ef1c kho\u00e1i, ng\u01b0\u1eddi \u0111\u00e0n \u00f4ng c\u00f3 c\u1ea3m gi\u00e1c nh\u1ea5t \u0111\u1ecbnh ph\u1ea3i ph\u00f3ng tinh v\u00e0 kh\u00f4ng k\u00ecm gi\u1eef \u0111\u01b0\u1ee3c. L\u00fac \u0111\u00f3, \u0111\u1ed9 nh\u1ea1y c\u1ea3m d\u01b0\u1eddng nh\u01b0 bi\u1ebfn m\u1ea5t, sau \u0111\u00f3 xu\u1ea5t hi\u1ec7n kho\u00e1i c\u1ea3m r\u1ea5t r\u00f5 n\u00e9t. Khi s\u1ef1 ph\u00f3ng tinh \u0111\u00e3 b\u1eaft \u0111\u1ea7u, ng\u01b0\u1eddi \u0111\u00e0n \u00f4ng kh\u00f4ng th\u1ec3 ng\u0103n c\u1ea3n \u0111\u01b0\u1ee3c b\u1eb1ng \u00fd ch\u00ed. Kho\u00e1i c\u1ea3m cao nh\u1ea5t \u0111\u1ea1t \u0111\u01b0\u1ee3c n\u1ebfu anh ta giao h\u1ee3p v\u1edbi ng\u01b0\u1eddi ph\u1ee5 n\u1eef m\u00ecnh y\u00eau, khi tinh d\u1ecbch \u0111\u01b0\u1ee3c h\u1ed3i ph\u1ee5c l\u1ea1i \u0111\u1ee7 l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft (kho\u1ea3ng 2-3 ng\u00e0y sau l\u1ea7n ph\u00f3ng tinh sau c\u00f9ng). N\u1ebfu ng\u01b0\u1eddi \u0111\u00e0n \u00f4ng sinh ho\u1ea1t t\u00ecnh d\u1ee5c v\u1edbi kho\u1ea3ng c\u00e1ch qu\u00e1 ng\u1eafn, kho\u00e1i c\u1ea3m c\u1ee7a nh\u1eefng l\u1ea7n ph\u00f3ng tinh v\u1ec1 sau c\u00e0ng gi\u1ea3m s\u00fat. \u1ede ng\u01b0\u1eddi ph\u1ee5 n\u1eef th\u00ec nh\u1eefng l\u1ea7n c\u1ef1c kho\u00e1i c\u00e0ng v\u1ec1 sau c\u00e0ng m\u00e3nh li\u1ec7t h\u01a1n.<\/p>\n\n\n\n
Vi\u1ec7c \u0111\u1ea1t \u0111\u01b0\u1ee3c kho\u00e1i c\u1ea3m s\u1ebd \u0111em l\u1ea1i cho c\u1ea3 hai ng\u01b0\u1eddi c\u1ea3m gi\u00e1c tho\u1ea3i m\u00e1i v\u1ec1 c\u1ea3 tinh th\u1ea7n v\u1ec1 th\u1ec3 ch\u1ea5t (n\u00f3i m\u1ed9t c\u00e1ch b\u00f3ng b\u1ea9y nh\u01b0 l\u1eddi m\u1ed9t ph\u1ee5 n\u1eef sau khi \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ef1c kho\u00e1i: “M\u1ed7i t\u1ebf b\u00e0 c\u01a1 th\u1ec3 t\u00f4i \u0111\u1ec1u \u0111\u01b0\u1ee3c th\u1ecfa m\u00e3n”). Ng\u01b0\u1ee3c l\u1ea1i, vi\u1ec7c kh\u00f4ng \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ef1c kho\u00e1i c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m s\u1ef1 s\u1ea3ng kho\u00e1i, t\u0103ng s\u1ef1 b\u1ef1c b\u1ed9i, g\u00e2y ra c\u1ea3m gi\u00e1c kh\u00f3 ch\u1ecbu \u1edf c\u00e1c c\u01a1 quan sinh d\u1ee5c. Khi c\u1ef1c kho\u00e1i, trong c\u01a1 th\u1ec3 di\u1ec5n ra nh\u1eefng thay \u0111\u1ed5i r\u1ea5t quan tr\u1ecdng. Nh\u1ecbp tim \u0111\u00f4i l\u00fac l\u00ean t\u1edbi 180\/ph\u00fat (gi\u1ed1ng nh\u01b0 c\u00e1c v\u1eadn \u0111\u1ed9ng vi\u00ean khi c\u0103ng th\u1eb3ng v\u1ec1 th\u1ec3 l\u1ef1c) huy\u1ebft \u00e1p t\u0103ng 40-80 mmHg, t\u0103ng s\u1ef1 tu\u1ea7n ho\u00e0n c\u1ee7a ph\u1ed5i\u2026<\/p>\n\n\n\n
Sau c\u1ef1c kho\u00e1i l\u00e0 giai \u0111o\u1ea1n th\u1ea3 l\u1ecfng c\u1ee7a to\u00e0n b\u1ed9 c\u01a1 th\u1ec3. S\u1ef1 c\u01b0\u01a1ng c\u1ee9ng m\u1ea5t \u0111i, h\u01a1i th\u1edf tr\u1edf l\u1ea1i b\u00ecnh th\u01b0\u1eddng, m\u00e0u da tr\u1edf l\u1ea1i nh\u01b0 c\u0169, xu\u1ea5t hi\u1ec7n mong mu\u1ed1n \u0111\u01b0\u1ee3c ngh\u1ec9 ng\u01a1i. S\u1ef1 \u0111\u1ee5ng ch\u1ea1m t\u1edbi c\u00e1c v\u00f9ng k\u00edch d\u1ee5c c\u00f3 th\u1ec3 g\u00e2y c\u1ea3m gi\u00e1c kh\u00f3 ch\u1ecbu. Kh\u1ea3 n\u0103ng c\u00f3 \u0111\u1ee3t h\u01b0ng ph\u1ea5n t\u00ecnh d\u1ee5c ti\u1ebfp theo mang t\u00ednh c\u00e1 th\u1ec3; th\u01b0\u1eddng \u1edf \u0111\u00e0n \u00f4ng l\u00e0 kho\u1ea3ng v\u00e0i gi\u1edd.<\/p>\n\n\n\n
T\u1ea5t c\u1ea3 c\u00e1c giai \u0111o\u1ea1n \u0111\u01b0\u1ee3c mi\u00eau t\u1ea3 \u1edf tr\u00ean kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng \u0111\u01b0\u1ee3c b\u1ed9c l\u1ed9 r\u00f5 n\u00e9t. Ch\u00fang c\u00f3 th\u1ec3 di\u1ec5n ra r\u1ea5t nhanh v\u00e0 l\u1eadp t\u1ee9c chuy\u1ec3n sang giai \u0111o\u1ea1n kh\u00e1c. <\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: B\u00e1c s\u0129 gi\u1ea3i \u0111\u00e1p v\u1ec1 chuy\u1ec7n \u1ea5y – Ferederic Rossiter B\u00e1c s\u0129: H\u00e0nh vi t\u00ecnh d\u1ee5c c\u1ee7a con ng\u01b0\u1eddi b\u1ecb chi ph\u1ed1i b\u1edfi m\u1ed9t m\u1ee5c \u0111\u00edch ch\u00ednh: \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 th\u1ed1ng nh\u1ea5t v\u1ec1 t\u00ecnh d\u1ee5c. C\u00e1c thay \u0111\u1ed5i v\u1ec1 sinh l\u00fd v\u00e0 n\u1ed9i t\u1ea1ng di\u1ec5n ra trong c\u01a1 th\u1ec3 khi giao […]<\/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":[21],"tags":[],"class_list":["post-12963","post","type-post","status-publish","format-standard","hentry","category-y-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/12963","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=12963"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/12963\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=12963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=12963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=12963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}