3.ekg latihan
TRANSCRIPT
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Interpretasi EKG
• Gelombang P: depolarisasi atrium• Gelombang Q: depolarisasi di berkas his• Gelombang R: depolarisasi menyebar dr bgn dalam ke bgn luar dasar
ventrikel• Segmen PR: waktu yg dibutuhkan oleh impuls dari SA node ke AV node;
terjadi perlambatan AV node• Gelombang S: depolarisasi menyebar naik dr bgn dasar ventrikel• Kompleks QRS: depolarisasi ventrikel• Segmen ST: waktu sejak akhir depolarisasi ventrikel sebelum terjadi
repolarisasi (fase plateau); saat tjd kontraksi & pengosongan ventrikel• Gelombang T: repolarisasi atrium • Interval TP: waktu saat terjadinya relaksasi & pengisian ventrikel
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the sequentialactivation (depolarization) of the right and left
atria
right and left ventricular depolarization (normally the ventricles are activated simultaneously)
ventricular repolarization
One ‘complex’ of ECG waveform
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Acute myocardial infarction
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ECG : large anterior MI
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Proximal large RCA occlusion
ST elevation in leads II, III, aVF, V5, and V6
with precordial ST depression
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P Pulmonale
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P Mitrale
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Ischemic Heart Disease
• Detectable by changes in S-T segment of ECG • Myocardial infarction (MI) is a heart attack – Diagnosed by high levels of creatine phosphate (CPK) & lactate
dehydrogenase (LDH)
Fig 13.34
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