Test Bank for Patient Care in Radiography 8th Edition by Ehrlich

Test Bank for Patient Care in Radiography 8th Edition by Ehrlich Chapter 02: Image Quality Factors Ehrlich: Patient Care in Radiography: With an Introduction to Medical Imaging MULTIPLE CHOICE 1. An x-ray exposure is made using the following factors: 200 mA, 0.04 seconds, 80 kVp, and 48 inches SID. In this case, which represents the value of the mAs? a. 0.08 b. 0.8 c. 8 d. 16,000 ANS: C REF: p. 22 OBJ: 3 2. An increase in OID will result in: 1. increased magnification. 2. decreased image detail. 3. increased image detail. a. 1 only b. 2 only c. 1 and 2 d. 1 and 3 ANS: C REF: p. 30 OBJ: 6 N U R S I N 3. The primary purpose of intensifying screens is to: G T B.C O M a. protect the film from light and damage during radiography. b. improve the definition on the radiograph. c. reduce the quantity of radiation required to produce a satisfactory image. d. reduce the possibility of artifacts on the film. ANS: C REF: p. 25 OBJ: 8 4. In order to increase the penetration of the x-ray beam, which of the following factors should be increased? a. Kilovoltage b. Milliamperage c. mAs d. Exposure time ANS: A REF: p. 28 OBJ: 4 5. In order to increase optical density of a film/screen image, which of the following factors should be increased? a. Kilovoltage b. SID c. mAs d. OID ANS: C REF: p. 27 OBJ: 3