Peb nthwv dej ntawm QRS complex QRS complex QRS ncua sij hawm ntsuas los ntawm qhov pib ntawm Q yoj mus rau qhov kawg ntawm S yoj. Ib txwm muaj li ntawm 40 mus rau 100 milliseconds (1 lub thawv me rau 2.5 lub thawv me). Cov cuab yeej EKG niaj hnub tso cai rau EKG cov ntaub ntawv khaws cia hauv cov ntawv digital thiab khaws cia rau hauv daim ntawv nyeem tau hauv computer. https://www.ncbi.nlm.nih.gov › pmc › articles › PMC3584304
Standardization of QRS Duration Measurement and LBBBB Criteria in …
sawv cev rau ventricular depolarization.
Dab tsi sawv cev rau ventricular repolarization ntawm ECG?
Ventricular depolarization (ua kom ua haujlwm) yog piav qhia los ntawm QRS complex, whereas ventricular repolarization yog txhais los ntawm lub sijhawm los ntawm qhov pib ntawm QRS complex mus rau qhov kawg ntawm T- lossis U-wave. Nyob rau saum npoo ECG, ventricular repolarization Cheebtsam suav nrog J-wave, ST-segment, thiab T- thiab U-waves.
Dab tsi sawv cev rau kev cog lus ventricular ntawm ECG?
QRS complex yog hais txog kev sib xyaw ntawm Q, R, thiab S nthwv dej, thiab qhia txog qhov ventricular depolarization thiab contraction (ventricular systole). Q thiab S nthwv dej yog nqes qis thaum R nthwv dej, nthwv dej nce siab, yog qhov tseem ceeb tshaj plaws ntawm ECG.
P QRS thiab T yoj sawv cev dab tsi?
P yoj hauv ECG complex qhia atrial depolarization. QRS yogLub luag haujlwm rau ventricular depolarization thiab T yoj yog ventricular repolarization.
P qhia dab tsi hauv ECG?
P yoj thiab PR ntu yog ib feem tseem ceeb ntawm electrocardiogram (ECG). Nws sawv cev hluav taws xob depolarization ntawm lub atria ntawm lub plawv. Nws feem ntau yog qhov zoo me me deflection los ntawm isoelectric hauv paus uas tshwm sim ua ntej QRS complex.
