1. The majority of all cardiac dysrhythmias are caused by ischemia secondary to hypoxia; therefore, the most appropriate drug to give a patient with any dysrhythmia is: a. Oxygen            c....

1. The majority of all cardiac dysrhythmias are caused by ischemia secondary to hypoxia; therefore, the most appropriate drug to give a patient with any dysrhythmia is:

a. Oxygen            c. Lidocaine

b. D5W                                 d. Morphine

2. The fibrous sac, covering the outer layer of the heart, which is in contact with the pleura, is the:

a. Epicardium                     c. Pericardium

b. Myocardium                                 d. Endocardium