Download - Reading Normal ECG - Maria A.S.W

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Page 1: Reading Normal ECG - Maria A.S.W

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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