____ is traditionally considered the drug of choice in cardiac arrest because it increases the strength of contraction, or in the case of ventricular fibrillation, it coarsens the fibrillation and thereby improves the chance of success with defibrillation.

What is the most commonly used additional imaging technique to confirm lung cancer?

a. Gammagraphy b. Videoscintigraphy c. Positron emission tomography d. Enhanced computed tomography

The use of a radiographic grid requires

a. attention to central ray angulation. b. an awareness of the SID. c. an increase in exposure factors. d. all of the above