2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Acetylcholine slows lub plawv dhia los ntawm ua kom lub M2 muscarinic receptor muscarinic receptor Cov tshuaj nrog muscarinic antagonist kev ua tau dav siv hauv tshuaj, hauv kev kho mob plawv tsis tshua muaj, zais zis ntau dhau, teeb meem ua pa xws li mob hawb pob. thiab COPD, thiab cov teeb meem neurological xws li Parkinson's disease thiab Alzheimer's disease. https://en.wikipedia.org › wiki › Muscarinic_antagonist
Muscarinic antagonist - Wikipedia
(M2R) uas, dhau los, qhib lub acetylcholine-activated potassium channel (IK, ACh) txhawm rau txhawm rau txhawm rau tua cov kab mob ntawm cov kab mob sinus ntawm lub sinus node Lub sinoatrial node (tseem hu ua sinuatrial node, SA node los yog sinus node) yog ib pawg ntawm cov hlwb nyob hauv phab ntsa ntawm txoj cai atrium ntawm lub siab. https://en.wikipedia.org › wiki › Sinoatrial_node
Sinoatrial node - Wikipedia
Vim li cas ACh thiaj txo lub plawv dhia?
Kev khi ntawm acetylcholine rau M2 receptors ua haujlwm ua rau lub plawv dhia qeeb kom txog thaum nws mus txog qhov qub sinus atherosclerosis. Qhov no yog ua tiav los ntawm qeeb tus nqi ntawm depolarization, ntxiv rau los ntawm kev txo qis kev tshaj tawm los ntawm lub atrioventricular node.
Acetylcholine txo cov ntshav siab li cas?
Note: tom qab tswj hwm ntawm i.v. bolus, acetylcholine yuav txhawb nqa muscarinic receptors nyob rau ntawm vascular endothelium, ua rau kev tso tawm.ntawmnitric oxide. Nitric oxide yuav so cov leeg nqaij leeg, ua rau poob ntawm cov ntshav siab.
Acetylcholine yuav ua li cas cuam tshuam lub plawv dhia vs norepinephrine?
Norepinephrine, tso tawm los ntawm cov hlab ntsha hauv lub siab, thiab epinephrine, tso tawm los ntawm cov qog adrenal, ua kom lub plawv dhia, hos acetylcholine, tso tawm los ntawm cov hlab ntsha parasympathetic, txo nws.
ACh inhibit cardiac leeg li cas?
Thaum acetylcholine khi rau acetylcholine receptors ntawm cov leeg nqaij pob txha, nws qhib ligand-gated sodium channels hauv cell membrane. … Txawm hais tias acetylcholine induces contraction ntawm skeletal nqaij, nws ua ntawm ntau hom receptor inhibit qhov contraction ntawm cov leeg nqaij fibers.
Pom zoo:
Puas terazosin txo qis lub plawv dhia?
Cov txiaj ntsig ntawm cov ntshav siab ntau dua cuam tshuam nrog qhov siab tshaj plaws ntawm cov ntshav plasma (thawj ob peb teev tom qab noj tshuaj) tshwm sim me ntsis ntxiv txoj haujlwm-nyob ntawm (ntau dua hauv txoj haujlwm erect) dua li cov nyhuv ntawm terazosin ntawm 24 teev thiab hauv txoj haujlwm erect muaj.
Yuav ua li cas txo lub plawv dhia?
Cov Lus Qhia: Thaum muab tshuaj sedative, dexmedetomidine dexmedetomidine Lub sijhawm rov qab tau ntev (82.2 +/- 24.3 feeb) thaum piv nrog tag nrho cov txheej txheem sijhawm (44.6 +/- 27.9 Nws.). Cov ntsiab lus: Dexmedetomidine tau pom tias muaj hemodynamic thiab ua pa ruaj khov thaum siv los ua ib tus neeg sawv cev sedative.
Thaum tus neeg dhia dhia dhia dhia dhia ua si yog dab tsi?
Thaum tus kws kho mob parachutist qhib nws lub parachute tom qab ncav cuag lub davhlau ya nyob twg qhov nrawm nrawm Ib yam khoom uas muaj thaj tsam loj uas cuam tshuam rau nws qhov loj, xws li parachute, muaj qhov dav dav dav dua li ib qho nrog thaj tsam me me ntsig txog nws qhov loj.
Puas apresoline txo lub plawv dhia?
Hydralazine (Apresoline) yog siv los ua kom lub plawv dhia hauv 21 cov neeg mob (14 hypertensive thiab 7 normotensive) kev txom nyem los ntawm cov tsos mob ntawm sinus bradycardia (SSB). Cov neeg mob tau raug soj ntsuam hauv chaw kho mob thiab los ntawm 24-h ECG tsom xam ua ntej thiab tom qab kho cov tshuaj nce ntxiv.
Thaum lub plawv dhia dhia?
Thaum khiav, koj yuav tsum cob qhia ntawm 50 txog 85 feem pua ntawm koj lub siab tshaj plaws. Txhawm rau xam qhov siab tshaj plaws, rho koj lub hnub nyoog los ntawm 220. Yog tias koj lub plawv dhia qis dua qhov no, tej zaum koj yuav xav tuaj tos kom tau txais txiaj ntsig zoo los ntawm koj qhov kev tawm dag zog.
