2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
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.
Pom zoo:
Dab tsi yog qhov txawv ntawm lub tshuab hluav taws xob thiab lub tshuab hluav taws xob?
Gramophone: Txhua lub suab kaw suab, lossis cov cuab yeej ua si yav dhau los-cov suab kaw, tshwj xeeb tshaj yog tias nws siv lub tiaj tiaj tiaj. Phonograph: Txhua lub suab kaw suab, lossis cov cuab yeej siv rau kev ua si cov suab uas tau kaw dhau los, tshwj xeeb tshaj yog tias nws siv lub tog raj kheej tig.
Dab tsi yuav tsum muaj qhov hloov hluav taws xob hloov hluav taws xob nyob twj ywm?
Feem ntau cov alternators uas them kom zoo yuav tsum tsim qhov voltage ntawm kwv yees 13.8 txog 14.2 volts ntawm qhov tsis ua haujlwm nrog lub teeb thiab cov khoom siv tawm. Nco ntsoov xa mus rau cov chaw tsim khoom tsheb cov lus qhia tshwj xeeb.
Dab tsi yog qhov hloov pauv hluav taws xob hluav taws xob siv rau?
Transcutaneous hluav taws xob paj hlwb stimulation (TENS) yog ib txoj kev kho mob uas cuam tshuam nrog kev siv hluav taws xob me me. Lub tshuab TENS yog ib qho khoom siv me me, roj teeb ua haujlwm uas tau txuas nrog cov nplaum nplaum hu ua electrodes.
Puas hluav taws xob hluav taws xob puas tsim hluav taws xob?
Coal feem ntau siv roj los tsim hluav taws xobhauv Tebchaws Meskas. Hauv cov chaw tsim hluav taws xob hluav taws xob hluav taws xob, cov hluav taws xob bituminous, subbituminous thee, lossis lignite raug hlawv. Cov cua kub uas tsim los ntawm kev sib xyaw ntawm cov thee yog siv los hloov cov dej mus rau hauv qhov chaw siab zog, uas tsav lub turbine, uas tsim hluav taws xob.
Lub tshuab hluav taws xob hluav taws xob tsim hluav taws xob li cas?
Piav seb lub twj hluav taws xob hluav taws xob tsim hluav taws xob hla lub membrane li cas. Los ntawm pum electrons hla lub membrane, sab uas cov electrons raug tshem tawm muaj qhov zoo dua, thaum sab tau txais cov hluav taws xob ntau muaj qhov tsis zoo.
