Which of the following types of atrial arrhythmia is characterized by extremely rapid incomplete contractions?
a. Premature atrial contraction
b. Paroxysmal atrial tachycardia
c. Atrial fibrillation
d. Sinus bradycardia
Question 2
An example of a commonly prescribed tranquilizer is ____________.
a. Valium
b. erythromycin
c. nystatin
d. atropine