Use the 1500 method to estimate the heart rate. 

An exclusive provider organization (EPO) is similar to a preferred provider organization (PPO) because they both have:

A. a limited provider network. B. gatekeepers. C. payment by capitation. D. flexible benefit design.

Radiation dose is directly proportional to the:

a. distance between source and worker. c. type of shield used. b. thickness of shield. d. time of exposure.