Rasmussen Pathophysiology - Final Exam Review questions and answers

On an electrocardiogram (EKG), the P wave represents which of the following? A) Atrial depolarization B) Ventricular depolarization C) Atrial repolarization D) Ventricular repolarization - ANSWER-A) Atrial depolarization Select all that apply. Which lab values are incorrect? A. Na+ 135-145 B. K+ 2.3-2.9 C. Mg 1.8-2.4 D. Calcium 2-3 - ANSWER-B. K+ 2.3-2.9 D. Calcium 2-3 What electrolyte, if too high or low, can cause cardiac arrhythmias? A. Mg B. Na+ C. K+ D. Ca - ANSWER-C. K+ A patient has ABGS as follows: pH 7.28, PaC02 59, HC03 24, PaO2 85. This would be diagnosed as A. Respiratory acidosis with hypoxemia B. Respiratory alkalosis with hypoxemia C. Metabolic acidosis with hypoxemia D. Metabolic alkalosis with hypoxemia - ANSWER-A. Respiratory acidosis with hypoxemia This type of c