![Dab tsi yog kev sib raug zoo ntawm cov hlab ntsha tawg thiab ntshav siab? Dab tsi yog kev sib raug zoo ntawm cov hlab ntsha tawg thiab ntshav siab?](https://i.answers-medical.com/preview/medical-health/14014854-what-is-the-relationship-between-stroke-volume-and-blood-pressure-j.webp)
Video: Dab tsi yog kev sib raug zoo ntawm cov hlab ntsha tawg thiab ntshav siab?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Kev txo qis hauv stroke ntim txo tus nqi ntawm ntshav hauv cov hlab ntsha system, txo cov diastolic ntshav siab . Dab tsi tshwm sim hauv peb lub cev: Thaum lub plawv dhia qis, stroke ntim nce kom tswj lub plawv tso zis.
Ib yam li ntawd, mob stroke npaum li cas cuam tshuam rau ntshav siab?
Stroke ntim (SV) hais txog qhov ntau ntawm ntshav pumped tawm ntawm sab laug ventricle nrog txhua lub plawv dhia. Qhov ntim tag nrho tsis yooj yim ntsuas, yog li lawv feem ntau kwv yees raws li qhov peb paub txog stroke ntim thiab yam uas nws cuam tshuam xws li ntshav siab uas peb ntsuas tau. HR x SV = Q.
Ib sab saum toj no, koj ua li cas ntsuas ntshav siab los ntawm cov hlab ntsha tawg? Muab xam los. Nws tus nqi yog tau los ntawm kev rho tawm qhov kawg- systolic ntim (ESV) los ntawm qhov kawg-diastolic ntim (EDV) rau qhov chaw tso pa tawm. Hauv cov txiv neej noj qab haus huv 70-kg, ESV yog kwv yees li 50 mL thiab EDV yog kwv yees li 120mL, muab qhov sib txawv ntawm 70 mL rau cov stroke ntim.
Kuj Paub, dab tsi yog qhov kev sib raug zoo ntawm mob hlab ntsha tawg thiab siab siab?
Qhov systemic mem tes siab yog kwv yees proportional mus stroke volume , los yog tus nqi ntawm cov ntshav tawm ntawm sab laug ventricle thaum lub sijhawm systole (kev ua twj tso kua mis) thiab sib piv sib piv rau kev ua raws (zoo ib yam rau Kev ywj pheej) ntawm lub aorta.
Dab tsi yog stroke ntim cuam tshuam los ntawm?
Stroke ntim qhov ntsuas tau txiav txim los ntawm peb yam: Preload: Lub siab puv lub plawv thaum kawg ntawm diastole. Contractility: Lub cev muaj zog ntawm contraction ntawm lub plawv cov leeg thaum lub sij hawm systole. Tom qab thauj khoom: Lub siab tawm tsam lub plawv yuav tsum ua haujlwm kom tshem tawm cov ntshav thaum lub sijhawm systole.
Pom zoo:
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