In medical terminology, the root for electrocardiogram is:

Two different drugs (each with its own mechanism of action) are administered to a patient in an attempt to relieve bronchoconstriction

The ordering physician hopes that the effect of the drug pair will be greater than the sum of the separate effects of each individual drug. If successful, this would be an example of a. potentiation. b. synergism. c. additivity. d. tolerance.

For an AP knee projection, the central ray is directed to a point inch distal to the apex of the patella. What is the result if the central ray is directed to a point inch proximal to the apex of the patella? 

A. The femorotibial joint will remain open B. The femorotibial joint will close C. Articular facets will appear on end, minimal surface area visualized D. Intercondylar eminence will be shifted lateally