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EKG Interpretation Basics

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This simplified guide covers the basics of EKG (ECG) interpretation, helping nursing students understand how to read and analyze electrocardiogram strips. It explains essential components such as the P wave, QRS complex, T wave, PR interval, and rhythm regularity. The resource introduces normal sinus rhythm, common arrhythmias (e.g., atrial fibrillation, ventricular tachycardia), and step-by-step interpretation tips. Ideal for NCLEX review, cardiac units, and clinical practice.

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EKG Interpretation Basics
First degree heart block - Type of heart block with prolonged PR interval.



Heart block - Delay or interruption in the electrical conduction system.



Isoelectric - Flat segment of the EKG representing resting heart cells with no electrical activity.



Mitral Valve - Enables blood flow from left atrium to left ventricle.



P wave - Represents atrial depolarization, should be less than 0.12 seconds.



PQRST Complex - Depolarization and repolarization sequence in heart cells.



PQRST complex - Represents the electrical conduction system from SA node to Purkinje fibers.



PR interval - Time for electrical signal to travel from atria to AV node, important in determining
heart block.



PR segment - Demonstrates the delay created by the AV node for atria to empty into ventricles.



Pulmonary Vein - Carries oxygenated blood from lungs to left atrium.



Pulmonic Valve - Facilitates blood flow from right ventricle to pulmonary artery.



Purkinje fibers - Conduct electrical signals to cause ventricular contraction.

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July 8, 2025
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