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imaging 2
mr. p midterm
| Question | Answer |
|---|---|
| In a fixed kVp system, the kVp is held constant a.for a given range of subject densities b.for a given range of densities c.while the mAs is varied to achieve appropriate image density d. all of the above | d. all the above |
| The primary variable of a fixed kVp system is.. | mAs |
| The higher the kVp, the.. a.higher photon energy b.lower the patient dose c.lower the contrast d. lower the patient dose e. all above | e. all above |
| In the early days of radiography, it was a common practice to use a change of __ kVp for every ___ centimeter of tissue thickness plus a constant. | 2 kVp 1 centimeter |
| Establishing the kVp steps in ___ cm increments permits simple halving or doubling the mAs to maintain density. | 4-5 cent |
| For a variable kVp exposure technique system, the kVp is primarily varied |