Prophecy ECG Questions And Answers 2022
steps for interpreting rhythms - Answer - 1. Regular/Irregular 2. Rate? 3. P before every QRS and a QRS for every P wave? 4. P-R interval measurement and is it consistent? 5. QRS wide or narrow? where to put limb leads on 12 lead EKG - Answer - on wrists and ankles best lead for atrial rhythms - Answer - lead II best lead for ventricular rhythms - Answer - V1 SA node intrinsic rate - Answer - 60-100 AV node intrinsic rate - Answer - 40-60 atrial depolarization - Answer - P wave PR interval - Answer - measured BEFORE P WAVE and AT THE Q norm: 0.12-.20s ***its too long if it is longer than 5 little boxes or one big box normal PR Interval - Answer - 0.12-0.20 seconds ventricular depolarization - Answer - QRS complex ventricular repolarization - Answer - T wave absolute refractory period - Answer - The minimum length of time after an action potential during which another action potential cannot begin -toilet theory -problem when QT interval increases 5 large boxes - Answer - 1 second 15 large boxes - Answer - 3 seconds 30 large boxes - Answer - 6 seconds normal P wave - Answer - less than 0.12
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