Cov txheej txheem:

Dab tsi yog ntsuas ntawm txoj kab ntsug ntawm ECG?
Dab tsi yog ntsuas ntawm txoj kab ntsug ntawm ECG?

Video: Dab tsi yog ntsuas ntawm txoj kab ntsug ntawm ECG?

Video: Dab tsi yog ntsuas ntawm txoj kab ntsug ntawm ECG?
Video: Qhov Ntawm Ko Yog Dab Tsi 2024, Lub Xya hli ntuj
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Qhov dav, lossis qhov hluav taws xob, ntawm cov cim hluav taws xob kaw tau hais tawm ntawm ib qho ECG hauv ntsug dimension thiab yog ntsuas hauv millivolts (mV). Qhov no txhais tau tias thaum saib cov ntawv luam tawm ECG nrug deb ntawm 25 hli nrog rau kab rov tav sawv cev 1 thib ob hauv lub sijhawm.

Tsis tas li ntawd, qhov axis ntsug ntawm daim ntawv ECG sawv cev li cas?

Cov kab rov tav kab nce thiab nqis raws li ntsug ntsug sawv cev voltage (amplitude) raws li ntsuas hauv millivolts (mV). Los ntawm ib leeg kab rov tav kab mus rau tom ntej sib npaug 0.1 mV. Ua ke lub kab rov tav thiab ntsug kab tsim ib daim phiaj ntawm squares los yog thawv.

Tsis tas li, dab tsi yog tus qauv ntsuas ECG ntsuas? Ntsug, tus ECG teeb duab ntsuas qhov siab (qhov dav) ntawm qhov muab yoj lossis cuam tshuam. Cov txheem calibration yog 10 hli (10 lub thawv me), sib npaug rau 1 mV. Qee lub sijhawm, tshwj xeeb tshaj yog thaum cov nthwv dej me me, ob npaug txheem yog siv (20 mm sib npaug 1 mv).

Cov lus nug tseem yog, koj yuav txiav txim siab li cas ntawm ECG?

Kev txhais ECG Axis

  1. Ib txwm Axis = QRS axis ntawm -30 ° thiab + 90 °.
  2. Sab laug Axis Deviation = QRS axis tsawg dua -30 °.
  3. Txoj Cai Sib Txawv Zoo = QRS axis siab tshaj +90 °.
  4. Kev Hloov Siab Axis = QRS axis nruab nrab ntawm -90 ° thiab 180 ° (AKA "Northwest Axis").

Txoj cai 300 rau ECG yog dab tsi?

Cov 300 Method : Suav cov naj npawb ntawm cov thawv loj nruab nrab ntawm 2 qhov ua tiav R nthwv dej thiab faib los ntawm 300 kom tau lub plawv dhia. 4. 1500 Nws Txoj kev : Suav tus naj npawb ntawm lub thawv me me ntawm ob txoj kev sib txuas ua ke R thiab faib tus lej no mus rau 1500 kom tau txais lub plawv dhia.

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