Reading Normal ECG - Maria A.S.W
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Reading Normal ECG
Maria Agustina Sulistyo Wulandari
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Worth to read?
• Identity• Time• Calibration• P wave– Neg (aVR)– Pos (lead II)
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Tips dan Tricks1. Rhytm2. Rate3. Axis4. P wave5. PR interval6. Q wave7. QRS complex8. ST segment9. T wave
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Determine the Rhytm
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Irama Sinus
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Rate
• R- R interval berapa kotak sedang . – 300/ kotak sedang
• R-R interval berapa kotak kecil– 1500/ kotak kecil
R- R interval
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• 1 kotak = 300x/ menit• 2 kotak = 150x/ menit• 3 kotak = 100 x/ menit• 4 kotak = 75x/ menit• 5 kotak = 60 x/ menit• 6 kotak = 50x/ menit
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AXIS
• Lihat di lead I dan AVF
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Gelombang P
• Atrium depolarisasi• Selalu (+) di II• Selalu (-) di aVR• Amplitudo < o,25 mV ( 2,5 mm)
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PR INTERVAL
• Waktu dari mulai atrium depolarisasi sampai ventrikel depolarisasi, termasuk adanya delay di AV node
• Normal : 0,12- 0,20 detik ( 3-5 kotak)
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Gelombang Q
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KOMPLEKS QRS
• Lamanya aktivitas depolarisasi ventrikel• Durasi normal = 0,06-0,12 detik
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ST segment• The ST segment is the flat, isoelectric section
of the ECG between the end of the S wave (J point) and the beginning of the T wave.
• It represents the interval between ventricular depolarization and repolarization.
• Lihat apakah ada ST elevasi/ ST depresi
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Gelombang T
• Repolarisasi ventrikel• Selalu positif kecuali di aVR• Amplitudo normal <10 mm di lead precordial
dan <5 mm di lead ekstremitas
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THANK YOU
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Latihan
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