__________ means using a device such as an aperture diaphragm, cone, or collimator to limit the useful or primary radiation beam to the area of clinical interest.?

The burden of proof identifies the __________ that is held legally responsible for substantiating any claims or statements that are being made

a. person b. evidence c. lawsuit d. judge

The part of the complete ESU circuit that delivers alternating current back from exposed tissue to the ESU generator is the:

a. active electrode pencil b. foot control pedal c. patient return electrode (grounding pad) d. third prong of the grounded plug