Video: Puas yog nitroprusside yog vasodilator?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Nitroprusside muaj zog vasodilator relaxes cov leeg nqaij vascular thiab tsim cov txiaj ntsig nthuav dav ntawm cov hlab ntsha thiab cov leeg leeg. Lwm cov leeg nqaij (piv txwv li, lub tsev menyuam, duodenum) tsis cuam tshuam. Sodium nitroprusside tshuaj yog nquag ua haujlwm ntawm cov leeg ntshav ntau dua ntawm cov hlab ntsha.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog lub mechanism ntawm kev txiav txim ntawm nitroprusside?
Mechanism ntawm kev nqis tes ua Sodium nitroprusside txhawm rau txhawm rau tso tawm nitric oxide (NO). Nws ua qhov no los ntawm kev khi rau oxyhaemoglobin tso tawm cyanide, methaemoglobin thiab nitric oxide. Tsis muaj kev ua kom guanylate cyclase hauv cov leeg leeg leeg thiab nce kev tsim tawm hauv lub cev ntawm cGMP.
Ib sab saum toj no, qhov sib txawv ntawm nitroprusside thiab nitroglycerin yog dab tsi? Yog li, (a) txawm hais tias i.c. nitroglycerin tshuaj thiab nitroprusside tsim cov teebmeem zoo sib xws ntawm cov khoom siv nyiaj txiag, i.v. nitroglycerin tshuaj yog zoo tshaj i.v. nitroprusside tshuaj nyob rau hauv augmenting collateral flow; (b) phentolamine muaj kev cuam tshuam tsis zoo rau kev ua haujlwm ruaj khov; thiab (c) tus txheeb ze vasodilator muaj peev xwm ntawm nitroglycerin
Ib yam li ntawd, hom tshuaj twg yog nitroprusside?
Nitroprusside yog vasodilator uas ua haujlwm los ntawm kev so cov leeg hauv koj cov hlab ntsha los pab lawv dilate (widen). Qhov no txo qis ntshav siab thiab tso cai rau cov ntshav ntws yooj yim dua los ntawm koj cov leeg thiab cov hlab ntsha.
Cov mis ntawm sodium nitroprusside yog dab tsi?
Sodium Nitroprusside hmoov , nws cov molecular qauv yog Na2[Fe(CN)]5TSIS YOG • 2H2O, thiab nws qhov hnyav molecular yog 297.95. Qhuav sodium nitroprusside yog hmoov liab-xim av, yaj hauv dej.
Pom zoo:
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