Which class of drugs decreases the toxic threshold for any local anesthetics administered?

This eye condition is found MOSTLY in males

A) Color blindness B) Diabetic retinopathy C) Dry eye syndrome D) Amblyopia

When every other beat is a premature ventricular contraction, it is known as:

A. salvo PVCs. B. run of PVCs. C. bigeminy. D. unifocal.