Qee yam piv txwv ntawm yuav ua li cas maneuvers hloov qhov kev siv ntawm cov lus yws tshwj xeeb suav nrog: Tes tuav: nce ntxiv tom qab. … Nws txo qhov kev siv ntawm kev yws vim hypertrophic obstructive cardiomyopathy thiab mitral valve prolapse. Squatting: nce preload.
Vim li cas tes thiaj nce preload?
Tus tuav tes ua kom nce afterload los ntawm squeezing cov hlab ntsha thiab nce tag nrho peripheral tsis kam.
Dab tsi maneuver nce preload?
Qhov nce hauv intrathoracic siab uas tshwm sim thaum lub sij hawm Valsalva maneuver incites ib ntu ntawm kev hloov pauv sai hauv preload thiab tom qab kev ntxhov siab. Thaum lub sij hawm strain, venous rov qab mus rau lub plawv txo qis thiab peripheral venous pressures nce.
Squatting nce preload li cas?
Squatting from a Standing Position
Squatting forces the blood volume that was stored in ob txhais ceg kom rov qab mus rau lub plawv, nce preload thiab yog li ua rau sab laug ventricular filling.
Puas aortic stenosis nce nrog tuav?
Kev tuav tes (txhawb rau 20 mus rau 30 vib nas this) yog qhov tseem ceeb tshaj plaws hauv kev sib txawv ntawm kev tawm suab systolic yws ntawm aortic stenosis los ntawm kev yws ntawm mitral regurgitation: Qhov kev siv ntawm kev yws ntawm aortic stenosis yuav txo qis, thaum lub suab yws ntawm mitral regurgitation nce.
