![Puas yog atropine yog qhov zoo Chronotropic? Puas yog atropine yog qhov zoo Chronotropic?](https://i.answers-medical.com/preview/medical-health/14027731-is-atropine-a-positive-chronotropic-j.webp)
Video: Puas yog atropine yog qhov zoo Chronotropic?
![Video: Puas yog atropine yog qhov zoo Chronotropic? Video: Puas yog atropine yog qhov zoo Chronotropic?](https://i.ytimg.com/vi/AuR6QyUUGF8/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov zoo inotropic, tsis zoo chronotropic , thiab cov hlab ntsha vasoconstrictor cuam tshuam ntawm ACh raug tshem tawm los ntawm muscarinic receptor blocker atropine . Nyob rau hauv lub siab pretreated nrog cyclooxygenase inhibitor indomethacin, ACh txo qis lub plawv dhia tab sis tsis cuam tshuam rau coronary txaus thiab contractile quab yuam.
Ib yam li ntawd ib tug yuav nug, dab tsi yog qhov zoo Chronotropic?
Chronotropic cov teebmeem (los ntawm chrono-, lub ntsiab lus lub sijhawm, thiab tropos, "tig") yog cov uas hloov pauv lub plawv dhia. Zoo chronotropes nce lub plawv dhia; tsis zoo chronotropes txo lub plawv dhia. Dromotrope cuam tshuam rau atrioventricular node (AV node) kev coj ua.
Ib sab saum toj no, dab tsi ua rau Chronotropic zoo? Qhib ntawm β1-adrenergic receptors nyob rau hauv lub plawv nce zoo chronotropic thiab ionotropic kev ua. Lub cev tiv thaiv kab mob hauv lub cev tau nce los ntawm kev nthuav dav ntawm cov hlab ntshav, feem ntau hauv cov leeg pob txha, tab sis kuj tseem nyob hauv lub raum thiab mesenteric ntshav ncig, uas yog ua by kev2-adrenergic system.
Tom qab ntawd, lo lus nug yog, yog atropine Chronotrope?
Atropine yog tus muscarinic receptor antagonist uas tau siv los txwv qhov cuam tshuam ntawm kev ua kom lub qhov ncauj ntau dhau ntawm lub plawv, uas tau tshwm sim ua sinus bradycardia thiab AV nodal block.
Yuav ua li cas atropine thim rov qab bradycardia?
Atropine yog thawj kab tshuaj rau kev kho mob ntawm bradycardia mob . Qhov nce hauv lub plawv dhia tshwm sim thaum twg atropine thaiv qhov cuam tshuam ntawm cov hlab ntsha vagus ntawm lub plawv. Thaum cov hlab ntsha vagus raug thaiv, SA node nce nws cov nqi hluav taws xob tawm thiab qhov no, dhau los, ua rau HR nce.
Pom zoo:
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Cov teeb meem Chronotropic (los ntawm chrono-, lub ntsiab lus lub sijhawm, thiab tropos, 'tig') yog cov uas hloov pauv lub plawv dhia. Zoo chronotropes nce lub plawv dhia; tsis zoo chronotropes txo lub plawv dhia. Dromotrope cuam tshuam rau atrioventricular node (AV node) kev coj ua
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