Dab tsi yog qhov systemic vascular resistance ntsuas?
Dab tsi yog qhov systemic vascular resistance ntsuas?

Video: Dab tsi yog qhov systemic vascular resistance ntsuas?

Video: Dab tsi yog qhov systemic vascular resistance ntsuas?
Video: Kev ntsuas xyab saib mob seb tim dab tsi 3/12/2019 2024, Lub Xya hli ntuj
Anonim

Systemic vascular resistance yog txhais raws li qhov systemic txhais tau tias cov hlab ntsha ntshav siab rho tawm txoj cai txoj hlab ntshav siab faib los ntawm lub plawv tso tawm.

Tib neeg tseem nug, qhov systemic vascular resistance txhais li cas?

Systemic vascular kuj (SVR) hais txog qhov tsis kam rau ntshav ntws muab los ntawm tag nrho cov zoo vasculature, tsis suav nrog pulmonary vasculature. Qhov no yog qee zaum hu ua tag nrho peripheral kuj (TPR).

Kuj Paub, qhov nce SVR txhais li cas? Systemic Vascular Resistance ( SVR ): Kev ntsuas kev tiv thaiv lossis cuam tshuam ntawm cov kab mob hauv lub cev kom ntshav ntws. Ib nce SVR tuaj yeem ua tau yuav tshwm sim los ntawm vasoconstrictors, hypovolemia, lossis poob qis septic poob qis. Ib tug txo SVR tau tshwm sim los ntawm thaum ntxov septic shock, vasodilators, morphine, nitrates, los yog hypercarbia.

Hauv qhov no, puas yog cov kab mob vascular tsis zoo ib yam li tom qab?

Afterload , tseem hu ua systemic vascular kuj (SVR), yog tus nqi ntawm tsis kam Lub plawv yuav tsum kov yeej kom qhib lub aortic valve thiab thawb cov ntshav ntim tawm mus rau hauv zoo kev ncig. Yog tias koj xav txog kev sib piv lub zais pa, afterload yog sawv cev los ntawm lub pob caus ntawm qhov kawg ntawm lub zais pa.

Puas yog peripheral vascular kuj zoo ib yam li cov kab mob vascular tsis kam?

Systemic Vascular Resistance . Systemic vascular kuj (SVR) qee zaum hu ua tag nrho peripheral tsis kam (TPR) lub peripheral vascular kuj (PVR). Tab sis tsis txhob hnov qab PVR tsis meej pem nrog lwm PVR, pulmonary vascular tsis kam ! Lawv tsis yog tag nrho ib yam yam.

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