Basic EKG Interpretation PDF

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More Basic Understanding of EKG's TEACHER: GONZALEZ YEAR 2017...

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BASIC EKG

Basic EKG Interpretation Nursing Care of the Adult with Complex Needs 

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Basic Cardiac Information o The heart has two components  Electrical & Muscle o The electric impulse stimulates the muscle to contract – moves the blood along o The heart will beat until it cannot beat anymore o Any cell can stimulate the cardiac cycle:  SA Node (Pacemaker of the heart)- 60-100  AV Node/Junction – 40-60  Ventricles – 20-40 Electrocardiogram o EKG lets you see the electricity that flows through the heart

Views of the Heart o Lead I – From R arm to L arm o Lead II – From R arm to L leg o Lead III – From L arm to L leg o Most commonly viewed lead is Lead II o Change lead to get different view, reduce artifact, better tracing, check asystole

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BASIC EKG

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Electrocardiogram Paper

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Normal Sinus Rhythm Criteria o Rate – 60 to100bpm o Rhythm – regular o All components are present:  P wave, QRS, T wave  P wave before every QRS o All measurements are in the normal range:  PR interval – 0.12 to 0.20  QRS – less than 0.12  QT Interval – 0.35 to 0.45 Sinus Rhythm Sinus rhythm with 1st degree AV Block

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BASIC EKG

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o All the components of Normal Sinus Rhythm except o PR interval is greater than 0.20 Sinus Tachycardia

o Rate – greater than 100bpm o Rhythm – regular o All components are present:  P wave, QRS, T wave  P wave before every QRS o All measurements are in the normal range:  PR interval – 0.12 to 0.20  QRS – less than 0.12  QT Interval – 0.35 to 0.45

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Sinus Bradycardia o Rate – less than 60 bpm o Rhythm – regular o All components are present:  P wave, QRS, T wave  P wave before every QRS o All measurements are in the normal range:  PR interval – 0.12 to 0.20  QRS – less than 0.12  QT Interval – 0.35 to 0.45

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BASIC EKG 

12 Lead EKG o Gold standard to identify ischemia and /or a myocardial infarction o Looks at the heart from all 12 different electrical angles o Gives an EKG tracing from each section of the heart o Can identify what area of the heart the ischemia or myocardial infarction is occurring

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