Rad Review 1-50 Flashcards Preview

Comprehensive Radiology Review > Rad Review 1-50 > Flashcards

Flashcards in Rad Review 1-50 Deck (50)
Loading flashcards...
1

Which of the following procedures requires that the patient be placed in the lithotomy position?

A. Myelography
B. Venography
C. T-tube cholangiography
D. Hysterosalpingography

D. Hysterosalpingography

2

Examples of potential late effects of ionizing radiation on humans can include

1. Leukemia
2. Genetic defects
3. Malignant disease

A. 1 only
B. 1 and 2 only
C. 1 and 3 only
D. 1, 2, and 3

D. 1, 2, and 3

1. Leukemia
2. Genetic defects
3. Malignant disease

3

The National Council on Radiation Protection and Measurements (NCRP) has recommended what total equivalent dose limit to the embryo/fetus?

A. 0.5 mSv
B. 5.0 mSv
C. 50 mSv
D. 500 mSv

B. 5.0 mSv

4

If exposure factors of 85 kVp, 400 mA, and 12 ms yield an output exposure of 150 mR, what is the milliroentgens per milliampere-seconds (mR/mAs)?

A. 0.32
B. 3.1
C. 17.6
D. 31

D. 31

5

IRs/cassettes frequently have a lead-foil layer behind the rear screen that functions to

A. improve penetration
B. absorb backscatter
C. preserve resolution
D. increase the screen speed

B. absorb backscatter

6

If your patient is unable to stay erect for a paranasal sinus examination, which of the following alternatives should be chosen?

A. Recumbent AP
B. Lateral recumbent
C. Lateral cross-table recumbent
D. Recumbent Waters'

C. Lateral cross-table recumbent

7

Which of the following correctly identifies the letter L in the radiograph shown in Figure 7–13?

A. Hamate
B. Lunate
C. Scaphoid
D. Trapezium

B. Lunate

8

Which of the following precautions should be observed when radiographing a patient who has sustained a traumatic injury to the hip?

1. When a fracture is suspected, manipulation of the affected extremity should be performed by a physician.
2. The axiolateral projection should be avoided.
3. To evaluate the entire region, the pelvis typically is included in the initial examination.

A. 1 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3

B. 1 and 3 only

1. When a fracture is suspected, manipulation of the affected extremity should be performed by a physician.

3. To evaluate the entire region, the pelvis typically is included in the initial examination.

9

Which of the following is (are) appropriate technique(s) for imaging a patient with a possible traumatic spine injury?

1. Instruct the patient to turn slowly and stop if anything hurts.
2. Maneuver the x-ray tube instead of moving the patient.
3. Call for help and use the log-rolling method to turn the patient.

A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3

C. 2 and 3 only

2. Maneuver the x-ray tube instead of moving the patient.

3. Call for help and use the log-rolling method to turn the patient.

10

Which of the following is (are) likely to improve image quality and decrease patient dose?

1. Beam restriction
2. Low kilovolt and high milliampere- second factors
3. Grids

A. 1 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3

A. 1 only

1. Beam restriction

11

Gonadal shielding should be provided for male patients in which of the following examinations?

1. Femur
2. Abdomen
3. Pelvis

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

D. 1, 2, and 3

1. Femur
2. Abdomen
3. Pelvis

12

Which of the following articulations may be described as diarthrotic?

1. Knee
2. Intervertebral joints
3. Temporomandibular joint (TMJ)

A. 1 only
B. 2 only
C. 1 and 3 only
D. 1, 2, and 3

C. 1 and 3 only

1. Knee
3. Temporomandibular joint (TMJ)

13

When comparing the male and female bony pelves, it is noted that the

1. male pelvis is deeper.
2. female pubic arch is greater than 90°.
3. female greater sciatic notch is wider.

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

D. 1, 2, and 3

1. male pelvis is deeper.
2. female pubic arch is greater than 90°.
3. female greater sciatic notch is wider.

14

With which of the following does the femoral head articulate?

1. Ilium
2. Ischium
3. Pubis

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

D. 1, 2, and 3

1. Ilium
2. Ischium
3. Pubis

15

To obtain an AP projection of the right ilium, the patient's

A. left side is elevated 40°.
B. right side is elevated 40°.
C. left side is elevated 15°.
D. right side is elevated 15°.

A. left side is elevated 40°.

16

Which of the four baselines illustrated in Figure 6–15 should be used for a lateral projection of facial bones?

A. Baseline 1
B. Baseline 2
C. Baseline 3
D. Baseline 4

C. Baseline 3

17

With milliamperage adjusted to produce equal exposures, all the following statements are true except

A. a single-phase examination done at 10 mAs can be duplicated with three-phase, 12-pulse at 5 mAs.
B. There is greater patient dose with three-phase equipment than with single-phase equipment.
C. Three-phase equipment can produce comparable radiographs with less heat unit (HU) buildup.
D. Three-phase equipment produces lower-contrast radiographs than single-phase equipment.

ALL TRUE EXCEPT

B. There is greater patient dose with three-phase equipment than with single-phase equipment.

18

Geometric unsharpness is most likely to be greater

A. at long SIDs.
B. at the anode end of the image.
C. with small focal spots.
D. at the cathode end of the image.

D. at the cathode end of the image.

19

Which of the following can impact the visibility of the anode heel effect?

1. SID
2. IR size
3. Screen speed

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

B. 1 and 2 only

1. SID
2. IR size

20

An exposure was made using 300 mA and 50 ms. If the exposure time is changed to 22 ms, which of the following milliamperage selections would most closely approximate the original receptor exposure?

A. 300 mA
B. 400 mA
C. 600 mA
D. 700 mA

D. 700 mA

21

Compared to a low ratio grid, a high ratio grid will

1. absorb more primary radiation.
2. absorb more scattered radiation.
3. allow more centering latitude.

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

B. 1 and 2 only

1. absorb more primary radiation.
2. absorb more scattered radiation.

22

A decrease from 200 to 100 mA will result in a decrease in which of the following?

1. Wavelength
2. Exposure rate
3. Beam intensity

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

C. 2 and 3 only

2. Exposure rate
3. Beam intensity

23

The effect that differential absorption has on radiographic contrast of a high-subject-contrast part can be minimized by

1. using a compensating filter.
2. using high-kilovoltage exposure factors.
3. increased collimation.

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

B. 1 and 2 only

1. using a compensating filter.
2. using high-kilovoltage exposure factors.

24

Factors that determine AEC exposure determination include

1. the thickness and density of the object
2. positioning of the object with respect to the photocell
3. beam restriction

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

D. 1, 2, and 3

1. the thickness and density of the object
2. positioning of the object with respect to the photocell
3. beam restriction

25

A satisfactory radiograph of the abdomen was made at a 42-inch SID using 300 mA, 0.06-second exposure, and 80 kVp. If the distance is changed to 38 inches, what new exposure time would be required?

A. 0.02 second
B. 0.05 second
C. 0.12 second
D. 0.15 second

B. 0.05 second

26

If the center photocell were selected for a lateral projection of the lumbar spine that was positioned with the spinous processes instead of the vertebral bodies centered to the grid, how would the resulting radiograph look?

A. The image would be underexposed.
B. The image would be overexposed.
C. The image would be correctly exposed.
D. An exposure could not be made.

A. The image would be underexposed.

27

The right posterior oblique position (Judet method) of the right acetabulum will demonstrate the

1. anterior rim of the right acetabulum
2. right iliac wing
3. right anterior iliopubic column

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

B. 1 and 2 only

1. anterior rim of the right acetabulum
2. right iliac wing

28

Which of the following statements regarding the male pelvis is (are) true?

1. The angle formed by the pubic arch is less than that of the female.
2. The pelvic outlet is wider than that of the female.
3. The ischial tuberosities are further apart.

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2, and 3

A. 1 only

1. The angle formed by the pubic arch is less than that of the female.

29

The absorption of useful radiation by a grid is called

A. grid selectivity.
B. grid cleanup.
C. grid cutoff.
D. latitude.

C. grid cutoff.

30

Focal-spot blur is greatest

A. directly along the course of the central ray
B. toward the cathode end of the x-ray beam
C. toward the anode end of the x-ray beam
D. as the SID is increased

B. toward the cathode end of the x-ray beam