Critical Care Exam 1(Dysrhythmias, ABG's, Hemodynamics, Respiratory) with Complete Solutions

Critical Care Exam 1(Dysrhythmias, ABG's, Hemodynamics, Respiratory) with Complete SolutionsCritical Care Exam 1(Dysrhythmias, ABG's, Hemodynamics, Respiratory) with Complete SolutionsCritical Care Exam 1(Dysrhythmias, ABG's, Hemodynamics, Respiratory) with Complete SolutionsCritical Care Exam 1(Dysrhythmias, ABG's, Hemodynamics, Respiratory) with Complete Solutions P wave - ANSWER-Depolarization of the atria PR interval - ANSWER--Normal is 0.12 to 0.2 seconds - onset of atrial depolarization until onset of ventricular polarization QRS complex - ANSWER--Normal is 0.06 to 0.11 seconds -Ventricular depolarization -systole T wave - ANSWER--appears after QRS complex - Ventricular repolarization -Spiked T-wave occurs with hyperkalemia U wave - ANSWER-- repolarization of the purkinje fibers - seen in patients with hypokalemia SA node - ANSWER-the pace-maker of the heart; where the impulse conduction of the heart usually starts; located in the top of the right atrium just below superior vena cava *sends impulses 60-100 BPM Normal Sinus Rhythm - ANSWER-Rate is 60-100/ minute Rhythm is regular P wave present PR interval: normal 0.12-0.20 QRS complex:normal