Video: QRS luv ntawm ECG yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lub sijhawm ntev ( ncua sijhawm ) ntawm QRS complex yog nruab nrab ntawm 0.08 thiab 0.10 vib nas this - uas yog, 80 thiab 100 milliseconds. Thaum lub sij hawm nyob nruab nrab ntawm 0.10 thiab 0.12 vib nas this, nws yog nruab nrab los yog ntev me ntsis. A QRS Lub sijhawm ntev dua 0.12 vib nas this yog suav tias yog qhov txawv txav.
Hais txog qhov no, QRS nyuaj hauv ECG yog dab tsi?
Raws li lub npe qhia, tus QRS complex suav nrog Q yoj , R yoj , thiab S. yoj . Cov QRS nyuaj sawv cev rau lub zog hluav taws xob raws li nws kis mus los ntawm lub qhov ncauj thiab qhia txog ventricular depolarization. Raws li nrog P. yoj , cov QRS complex pib ua ntej qhov kev sib tw ntawm lub ventricular.
Ib tug kuj yuav nug, P QRS thiab T waves sawv cev li cas? Atrial thiab ventricular depolarization thiab repolarization yog sawv cev ntawm ECG raws li ib tug series ntawm nthwv dej : ua P yoj ua raws li cov QRS complex thiab T wave . Thawj deflection yog tus P yoj cuam tshuam nrog txoj cai thiab sab laug atrial depolarization. Qhov thib ob yoj yog QRS nyuaj.
Hauv qhov no, qhov dav QRS ncua sijhawm qhia dab tsi?
Rationale. Cov QRS complex ntev yog dav (> 0.12 vib nas this lossis 3 lub thawv me me) hauv txhua qhov txhuas txhuas. Ua rau kev nthuav dav QRS nyuaj suav nrog sab xis lossis sab laug BBB, lub tshuab ua kom nrawm nrawm, hyperkalemia, lub plawv dhia preexcitation raws li pom hauv Hma-Parkinson-White tus qauv, thiab lub plawv dhia.
QRS sawv cev rau dab tsi?
Kev txhais lus ntawm QRS complex QRS complex: Lub deflections nyob rau hauv ib tug electrocardiogram (EKG) tracing uas sawv cev rau lub ventricular kev ua si ntawm lub plawv.
Pom zoo:
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