Which of the following describes a variable kVp technique chart? ...

[ishan]

Which of the following describes a variable kVp technique chart?
 
 mAs is increased with each centimeter increase of the part
  only kVp is increased while the mAs stays constant
  kVp is increased a step and mAs is decreased a step
  both mAs and kVp are increased with part thickness

Question 2

Patients who are unresponsive should receive what type of communication during imaging?
 
 address the patient by name and explain what you are going to do
  communicate only if others are in the room
  communicate with the patient's family members instead of with the patient
  no communication is necessary because the patient is unresponsive

[janeli1]

Answer to Question 1

only kVp is increased while the mAs stays constant

Rationale: Variable kVp technique charts use a constant mAs while the kVp is increased as part thickness increases. This chart is not often applied with consideration of increased scatter production with increased kVp values.

Answer to Question 2

address the patient by name and explain what you are going to do

Rationale: Patients who are unresponsive should be treated as though they can communicate. Addressing the patient by their name, introducing yourself, and explaining what you are doing as you are doing it is the care this type of patient should receive.