Cov txheej txheem:
Video: Dab tsi yog txoj kev thim rov qab?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Acidental misplacement ntawm lub limb ua electrodes yog ib qho ua rau ECG txawv txav thiab tuaj yeem sim ua cov kab mob xws li ectopic atrial atherosclerosis, chav loj dua lossis myocardial ischaemia thiab infarction. Limb coj tej zaum yuav raug cuam tshuam tag nrho, ua rau pom ntawm lwm tus ua los yog raug txo mus rau ib txoj kab ncaj nraim.
Tib neeg tseem nug, koj paub li cas yog tias cov ceg ntoo thim rov qab?
Lub ntsiab ECG taw qhia rau Limb Lead Reversal:
- Kev thim rov qab ua tau tshwm sim; qhov feem ntau yog txoj cai thiab sab caj npab thim rov qab.
- Koj thawj qhov tsis zoo yog qhov tsis zoo QRS txoj hauv kev coj kuv.
- Feem ntau nce P-QRS-T txoj hauv aVR yog lwm qhov lus qhia loj.
- Thaum tsis ntseeg, rov ua ECG!
Tsis tas li ntawd, qhov twg ECG coj yuav tsum tau hloov pauv? Hauv qhov qub ECG (saib hauv qab) T yoj ib txwm upright nyob rau hauv ua I, II, V3-6, thiab ib txwm rov qab nyob rau hauv coj aVR. Lwm tus ua yog qhov sib txawv nyob ntawm qhov kev taw qhia ntawm QRS thiab hnub nyoog ntawm tus neeg mob.
Kuj paub, nws txhais li cas thaum P yoj rov qab?
Yog tias p - yoj yog enlarged, atria yog enlarged. Yog tias P yoj rov qab , nws feem ntau yuav yog ectopic atrial atherosclerosis tsis yog los ntawm qhov sinus node. Hloov P yoj morphology pom nyob rau sab laug lossis sab xis ntawm lub plawv. Qhov PTa ntu tuaj yeem siv los kuaj mob pericarditis lossis atrial infarction.
Dab tsi yog qhov taw qhia ntawm ECG?
Qhov ntawm ib qho ECG Rau ntawm ua tau txiav txim siab " limb ua "vim lawv muab tso rau ntawm caj npab thiab/lossis ob txhais ceg ntawm tus kheej. Lwm tus rau ua raug suav hais tias "precordial ua "Vim tias lawv tau muab tso rau ntawm lub cev (precordium). Tus rau limb ua hu ua coj I, II, III, aVL, aVR and aVF.
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