Lab 8 - ECG, Heart Rate & Blood Pressure, Respiratory System

Lab 8 - ECG, Heart Rate & Blood Pressure, Respiratory...

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Electrocardiography, Heart Rate, and Blood Pressure Measurement
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Review of The Heart Intrinsic Conduction System SA Node AV Node Bundle of His Bundle Branches Purkinje Fibers
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Electrocardiography (ECG, EKC) Electrocardiography: Method of tracing the electric current generated by the heart muscle during a heartbeat. It provides information on the condition and performance of the heart. Used to diagnose cardiac arrhythmias (irregular heart beat) Helps Detect electrolyte disturbances Used as screening tool for ischemic heart disease during a cardiac stress test
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P,Q,R,S,and T Waves P wave: Atrial depolarization, SA Node sends electrical impulse and spreads from right atrium to the left atrium The Shape and duration of the P wave may indicate atrial enlargement PR Interval: Measured from the beginning of the P wave to the beginning of the QRS complex A PR over 200 ms may indicate a first degree heart block QRS Complex: Corresponds to the depolarization
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Lab 8 - ECG, Heart Rate & Blood Pressure, Respiratory...

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