QRS complex QRS complex Nws feem ntau yog qhov nruab nrab thiab pom tseeb feem ntau ntawm kev taug qab. Nws sib haum mus rau depolarization ntawm sab xis thiab sab laug ventricles ntawm lub plawv thiab contraction ntawm cov leeg ventricular loj. Hauv cov neeg laus, QRS complex feem ntau kav 80 mus rau 100 ms; Hauv cov menyuam yaus nws yuav luv dua. https://en.wikipedia.org › wiki › QRS_complex
QRS complex - Wikipedia
sawv cev rau hluav taws xob impulse raws li nws kis tau los ntawm ventricles thiab qhia ventricular depolarization. Raws li nrog P yoj, QRS complex pib ua ntej ventricular contraction.
P QRS thiab T yoj sawv cev dab tsi?
P yoj hauv ECG complex qhia atrial depolarization. QRS yog lub luag haujlwm rau ventricular depolarization thiab T yoj yog ventricular repolarization.
Qhov twg ntawm ECG sawv cev rau hluav taws xob xaim hluav taws xob los ntawm ventricles?
P nthwv dej sawv cev rau depolarization (contraction) ntawm atria, ntu PR kev xa tawm ntawm hluav taws xob impulse mus rau ventricles, QRS complex sawv cev rau depolarization (contraction) ntawm lub ventricles thiab T yoj qhia tau hais tias lub repolarization (so) ntawm lub ventricles.
QRS sawv cev li cas ntawm ECG?
Kev sib xyaw ntawm Q nthwv dej, R nthwv dej thiab S nthwv dej, "QRS complex"sawv cev ventricular depolarization. Cov lus no tuaj yeem ua rau tsis meej pem, vim tias tsis yog txhua qhov ECG coj muaj tag nrho peb ntawm cov nthwv dej no; tseem hais tias "QRS complex" yog tam sim no tsis hais.
R yoj sawv cev dab tsi?
R nthwv dej qhia txog depolarization ntawm lub ntsiab loj ntawm lub ventricles -li no nws yog nthwv dej loj tshaj plaws. S yoj taw qhia qhov kawg depolarization ntawm lub ventricles, ntawm lub hauv paus ntawm lub plawv.
