Basic Dysrhythmias Exam With 100% Correct Answers 2024 latest Update
Basic Dysrhythmias Exam With 100% Correct Answers 2024 latest Update EKG paper is divided into small squares and larger squares - Correct Answer Large squares are defined by a dark line. They are 5 squares high and 5 squares long (0.20 seconds) Small squares may be lines or may be dots within the dark lines. They are 0.04 seconds every mark below EKG grid is 3sec Artifact - Correct Answer EKG waveforms from sources outside the heart Interference seen on a monitor or EKG strip 4 causes Patient movement (i.e. pt. with tremors) Loose or defective electrodes (fuzzy baseline) Improper grounding (60 cycle interference) Faulty EKG apparatus Normal PR and QRS interval lengths - Correct Answer PR Interval: .12-.20 seconds QRS Interval: .12 seconds Origin of Rhythms - Correct Answer They are named for the structure of the heart where the foci (a cell sending off an electrical impulse) is located that is producing the abnormal rhythm Sinus (Sinus node) Junctional (Area between the atria & ventricles) Ventricular (any cell in the ventricles) Atrial (any cell in the atria) AV Blocks (AV node blocking some or all of the passage of electricity through it)
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