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Pre-excitation, Atrioventricular Reentrant (Reentry) Tachycardia (AVRT), Wolff-Parkinson-White (WPW) syndrome

…interval is <0.12 seconds. Delta wave : depolarization of ventricular myocardium will start where the accessory pathway inserts into the ventricle, and the impulse will…

Blood gas interpretation: quick reference for acid-base disorders

…anion gap, is there a further metabolic disturbance? Calculate the delta gap or delta ratio 6 Does the result fit the patient? If not, check…

ECG parameters

…300 ms may become haemodynamically significant. Pre excitation: PR < 120 ms with a delta wave and QRS 110 ms. Brugada pattern type 1: ST…

Quiz: ECG in athletes

…in leads V1 V4 in black athletes. C: PR interval <120 ms with a delta wave and wide QRS (≥120 ms). D: QRS duration ≥140…

The PR Interval & PR segment

…spreads outside of the His Purkinje system. The slow initial depolarization generates a delta wave on the ECG. Pre excitation will also cause a prolongation…

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